China and Russia have called on the US and one of its key allies to freeze large scale military exercises in an attempt to cool tensions, after North Korea test-fired a missile it claimed could hit America.

The two countries joined diplomatic forces to demand North Korea suspend its ballistic missile programme and for the US and South Korea to agree to put off military exercises, that have heightened tensions on the Korean peninsula.

After months of sabre-rattling from Donald Trump’s administration and a series of defiant weapons tests by Pyongyang, North Korea claimed it had successfully fired an intercontinental ballistic missile (ICBM) for the first time, which flew a trajectory some experts said that could eventually allow a weapon to hit the US state of Alaska. The test came days after Mr Trump and South Korean President Moon Jae-in met in Washington to discuss further sanctions against its northern neighbour, and the US President said the “era of strategic patience with the North Korean regime has failed”.

US media said US officials believed the test was of an ICBM, while the US also requested an urgent UN Security Council session to discuss the launch.

North Korean state television said the test of the Hwasong-14, which took place early Tuesday morning local time, was overseen by leader Kim Jong-un. It said the projectile had reached an altitude of 1,731 miles and flew for 39 minutes before hitting a target in the sea.

It said North Korea was now a “full-fledged nuclear power that has been possessed of the most powerful inter-continental ballistic rocket capable of hitting any part of the world”.

Experts said the capabilities of the missile remained unclear - with some disgreement over the potential range of the missile - but said it marked a potential milestone in North Korea’s efforts to project its nuclear capability.

David Wright, of the Global Security Programme at the Union of Concerned Scientists, said if the reports were true, the missile would have a maximum range of around roughly 4,160 miles on a standard trajectory. “That range would not be enough to reach the lower 48 states or the large islands of Hawaii, but would allow it to reach all of Alaska,” he said in a blog post.

Trump says US patience with North Korea 'is over'

Karl Dewey, an analyst with Jane’s Information Group, said a successful development of an ICBM by North Korea, would “give decision-makers in Washington reason to pause for thought before deciding to strike the communist regime”.

Some have suggested the missile could even travel further, if launched in an easterly direction given the Earth’s rotation. This would technically enable North Korea to target not just all of Alaska, but a small part of northwestern Canada.

Jean Lee of Wilson Centre in Washington said the latest test was cause for people to be worried. “Test-firing a ballistic missile just days after the Trump-Moon summit, where the two leaders discussed tightening sanctions against North Korea, is Pyongyang’s way of sending a message of defiance to the US and South Korean leaders,” she said.

World news in pictures Show all 50 1 /50 World news in pictures World news in pictures 14 September 2020 Japan's Prime Minister Shinzo Abe, Chief Cabinet Secretary Yoshihide Suga, former Defense Minister Shigeru Ishiba and former Foreign Minister Fumio Kishida celebrate after Suga was elected as new head of the ruling party at the Liberal Democratic Party's leadership election in Tokyo Reuters World news in pictures 13 September 2020 A man stands behind a burning barricade during the fifth straight day of protests against police brutality in Bogota AFP via Getty World news in pictures 12 September 2020 Police officers block and detain protesters during an opposition rally to protest the official presidential election results in Minsk, Belarus. Daily protests calling for the authoritarian president's resignation are now in their second month AP World news in pictures 11 September 2020 Members of 'Omnium Cultural' celebrate the 20th 'Festa per la llibertat' ('Fiesta for the freedom') to mark the Day of Catalonia in Barcelona. Omnion Cultural fights for the independence of Catalonia EPA World news in pictures 10 September 2020 The Moria refugee camp, two days after Greece's biggest migrant camp, was destroyed by fire. Thousands of asylum seekers on the island of Lesbos are now homeless AFP via Getty World news in pictures 9 September 2020 Pope Francis takes off his face mask as he arrives by car to hold a limited public audience at the San Damaso courtyard in The Vatican AFP via Getty World news in pictures 8 September 2020 A home is engulfed in flames during the "Creek Fire" in the Tollhouse area of California AFP via Getty World news in pictures 7 September 2020 A couple take photos along a sea wall of the waves brought by Typhoon Haishen in the eastern port city of Sokcho AFP via Getty World news in pictures 6 September 2020 Novak Djokovic and a tournament official tends to a linesperson who was struck with a ball by Djokovic during his match against Pablo Carreno Busta at the US Open USA Today Sports/Reuters World news in pictures 5 September 2020 Protesters confront police at the Shrine of Remembrance in Melbourne, Australia, during an anti-lockdown rally AFP via Getty World news in pictures 4 September 2020 A woman looks on from a rooftop as rescue workers dig through the rubble of a damaged building in Beirut. A search began for possible survivors after a scanner detected a pulse one month after the mega-blast at the adjacent port AFP via Getty World news in pictures 3 September 2020 A full moon next to the Virgen del Panecillo statue in Quito, Ecuador EPA World news in pictures 2 September 2020 A Palestinian woman reacts as Israeli forces demolish her animal shed near Hebron in the Israeli-occupied West Bank Reuters World news in pictures 1 September 2020 Students protest against presidential elections results in Minsk TUT.BY/AFP via Getty World news in pictures 31 August 2020 The pack rides during the 3rd stage of the Tour de France between Nice and Sisteron AFP via Getty World news in pictures 30 August 2020 Law enforcement officers block a street during a rally of opposition supporters protesting against presidential election results in Minsk, Belarus Reuters World news in pictures 29 August 2020 A woman holding a placard reading "Stop Censorship - Yes to the Freedom of Expression" shouts in a megaphone during a protest against the mandatory wearing of face masks in Paris. Masks, which were already compulsory on public transport, in enclosed public spaces, and outdoors in Paris in certain high-congestion areas around tourist sites, were made mandatory outdoors citywide on August 28 to fight the rising coronavirus infections AFP via Getty World news in pictures 28 August 2020 Japanese Prime Minister Shinzo Abe bows to the national flag at the start of a press conference at the prime minister official residence in Tokyo. Abe announced he will resign over health problems, in a bombshell development that kicks off a leadership contest in the world's third-largest economy AFP via Getty World news in pictures 27 August 2020 Residents take cover behind a tree trunk from rubber bullets fired by South African Police Service (SAPS) in Eldorado Park, near Johannesburg, during a protest by community members after a 16-year old boy was reported dead AFP via Getty World news in pictures 26 August 2020 People scatter rose petals on a statue of Mother Teresa marking her 110th birth anniversary in Ahmedabad AFP via Getty World news in pictures 25 August 2020 An aerial view shows beach-goers standing on salt formations in the Dead Sea near Ein Bokeq, Israel Reuters World news in pictures 24 August 2020 Health workers use a fingertip pulse oximeter and check the body temperature of a fisherwoman inside the Dharavi slum during a door-to-door Covid-19 coronavirus screening in Mumbai AFP via Getty World news in pictures 23 August 2020 People carry an idol of the Hindu god Ganesh, the deity of prosperity, to immerse it off the coast of the Arabian sea during the Ganesh Chaturthi festival in Mumbai, India Reuters World news in pictures 22 August 2020 Firefighters watch as flames from the LNU Lightning Complex fires approach a home in Napa County, California AP World news in pictures 21 August 2020 Members of the Israeli security forces arrest a Palestinian demonstrator during a rally to protest against Israel's plan to annex parts of the occupied West Bank AFP via Getty World news in pictures 20 August 2020 A man pushes his bicycle through a deserted road after prohibitory orders were imposed by district officials for a week to contain the spread of the Covid-19 in Kathmandu AFP via Getty World news in pictures 19 August 2020 A car burns while parked at a residence in Vacaville, California. Dozens of fires are burning out of control throughout Northern California as fire resources are spread thin AFP via Getty World news in pictures 18 August 2020 Students use their mobile phones as flashlights at an anti-government rally at Mahidol University in Nakhon Pathom. Thailand has seen near-daily protests in recent weeks by students demanding the resignation of Prime Minister Prayut Chan-O-Cha AFP via Getty World news in pictures 17 August 2020 Members of the Kayapo tribe block the BR163 highway during a protest outside Novo Progresso in Para state, Brazil. Indigenous protesters blocked a major transamazonian highway to protest against the lack of governmental support during the COVID-19 novel coronavirus pandemic and illegal deforestation in and around their territories AFP via Getty World news in pictures 16 August 2020 Lightning forks over the San Francisco-Oakland Bay Bridge as a storm passes over Oakland AP World news in pictures 15 August 2020 Belarus opposition supporters gather near the Pushkinskaya metro station where Alexander Taraikovsky, a 34-year-old protester died on August 10, during their protest rally in central Minsk AFP via Getty World news in pictures 14 August 2020 AlphaTauri's driver Daniil Kvyat takes part in the second practice session at the Circuit de Catalunya in Montmelo near Barcelona ahead of the Spanish F1 Grand Prix AFP via Getty World news in pictures 13 August 2020 Soldiers of the Brazilian Armed Forces during a disinfection of the Christ The Redeemer statue at the Corcovado mountain prior to the opening of the touristic attraction in Rio AFP via Getty World news in pictures 12 August 2020 Young elephant bulls tussle playfully on World Elephant Day at the Amboseli National Park in Kenya AFP via Getty World news in pictures 11 August 2020 French Prime Minister Jean Castex is helped by a member of staff to put a protective suit on prior to his visit at the CHU hospital in Montpellier AFP via Getty World news in pictures 10 August 2020 Locals harvest their potatoes as Mount Sinabung spews volcanic ash in Karo, North Sumatra province, Indonesia Antara Foto/Reuters World news in pictures 9 August 2020 Doves fly over the Peace Statue at Nagasaki Peace Park during the memorial ceremony held for the 75th anniversary of the atomic bombing EPA World news in pictures 8 August 2020 Anti-government protesters try to remove concrete wall that installed by security forces to prevent protesters reaching the Parliament square, during a protest against the political elites and the government after this week's deadly explosion in Beirut AP World news in pictures 7 August 2020 A protester throws a stone towards Israeli forces in the village of Turmus Aya, north of Ramallah in the occupied West Bank, following a march by Palestinians against the building of Israeli settlements AFP via Getty World news in pictures 6 August 2020 A woman yells as soldiers block a road for French President Emmanuel Macron's visit the Gemmayzeh neighborhood. The area in Beirut suffered extensive damage from the explosion at the seaport AP World news in pictures 5 August 2020 Damage at the site of Tuesday's blast in Beirut's port area, Lebanon Reuters World news in pictures 4 August 2020 A large explosion in the Lebanese capital Beirut. The blast, which rattled entire buildings and broke glass, was felt in several parts of the city AFP via Getty World news in pictures 3 August 2020 A general view shows the new road bridge in Genoa, Italy ahead of its official inauguration, after it was rebuilt following its collapse on August 14, 2018 which killed 43 people Reuters World news in pictures 2 August 2020 Empty stall spaces are seen hours before a citywide curfew is introduced in Melbourne, Australia EPA World news in pictures 1 August 2020 People take part in a demonstration by the initiative "Querdenken-711" with the slogan "the end of the pandemic - the day of freedom" to protest against the current measurements to curb the spread of COVID-19 in Berlin, Germany AFP via Getty World news in pictures 31 July 2020 Pilgrims circumambulating around the Kaaba, the holiest shrine in the Grand mosque in Mecca. Muslim pilgrims converged today on Saudi Arabia's Mount Arafat for the climax of this year's hajj, the smallest in modern times and a sharp contrast to the massive crowds of previous years Saudi Ministry of Media/AFP World news in pictures 30 July 2020 The Mars 2020 Perseverance mission lifts off at the Kennedy Space Centre in Florida. The mission is part of the USA's largest moon to Mars exploration. Nasa will attempt to establish a sustained human presence on and around the moon by 2028 through their Artemis programme EPA World news in pictures 29 July 2020 A woman refreshes herself in a outdoor pool in summer temperatures in Ehingen, Germany dpa via AP World news in pictures 28 July 2020 Malaysia's former prime minister Najib Razak speaks to the media after he was found guilty in his corruption trial in Kuala Lumpur AFP via Getty World news in pictures 27 July 2020 North Korean leader Kim Jong Un poses for a photograph after conferring commemorative pistols to leading commanding officers of the armed forces on the 67th anniversary of the "Day of Victory in the Great Fatherland Liberation War". Which marks the signing of the Korean War armistice KCNA via Reuters

“It’s also strategic: if the US and South Korea are going to step up sanctions, North Korea will certainly move faster in getting its illicit nuclear and ballistic missile programmes as far along as they can before any negotiations on a freeze or dismantlement.”

Efforts by Russia and China to ease tensions was set out in a joint statement from the Russian and Chinese foreign ministries, issued shortly after President Vladimir Putin and Chinese President Xi Jinping held talks in the Kremlin.

“The situation in the region affects the national interests of both countries,” it said. “Russia and China will work in close coordination to advance a solution to the complex problem of the Korean Peninsula in every possible way.”

Mr Trump and South Korean Moon Jae-in discussed options for more sanctions on North Korea (AP)

The statement said Washington was using North Korea as a pretext to expand its military infrastructure in Asia and risked upsetting the strategic balance of power in the area.

On Tuesday, Heather Nauert, a spokeswoman for the State Department, said the US was “working with interagency partners on a detailed assessment” of the launch.

On Monday night, Mr Trump had written on social media: “North Korea has just launched another missile. Does this guy have anything better to do with his life? Hard to believe that South Korea.”

Mr Trump was warned by Barack Obama in one of their final conversations before he took office, that dealing with the threat of North Korea would be one of his most pressing challenges as president. Mr Trump has been seeking to push China, which has traditionally exercised influence over North Korea, to do more to get it to halt its missile tests.

In recent weeks, however, the President appears to have grown frustrated over China’s lukewarm attitude. In a phone call on Sunday night, Mr Trump is said to have told Mr Xi, during what was described as a cordial conversation, that the US was prepared to act on its own if Beijing was unwilling.

He later wrote on Twitter: “Perhaps China will put a heavy move on North Korea and end this nonsense once and for all.”

Mr Trump is due to meet both Mr Xi and Mr Putin during the G20 in Germany this week.

Japan said on Monday it would have a trilateral summit with the United States and South Korea on North Korea at the G20. Its Prime Minister Shinzo Abe said he would ask the presidents of China and Russia to play more constructive roles.

Chinese Foreign Ministry spokesman Geng Shuang called on Tuesday for calm and restraint, and reiterated China's opposition to North Korea's violation of U.N. resolutions on missile tests.

Responding to Trump's tweet, Mr Geng said China had been working hard to resolve the North Korean nuclear issue.

“China's role is indispensable,” he told a daily news briefing. “We hope all sides can meet each other half way.”