The US military says it has detected a failed attempt to launch a ballistic missile in North Korea, after the country threatened revenge against its enemies for "hostile acts hurting the dignity" of Kim Jong-un.

Monitors at US Strategic Command said the launch occurred near the city of Kusong on Saturday as the totalitarian state continues attempts to develop long-range weapons.

Officials said the attempt was recorded at 12.03pm local time on Saturday (4.33pm BST) and that the weapon, presumed to be a Musadan intermediate-range ballistic missile, did not pose a threat.

“We strongly condemn this and North Korea's other recent missile tests, which violate UN Security Council Resolutions explicitly prohibiting North Korea's launches using ballistic missile technology,” said Gary Ross, a spokesperson for the Pentagon.

North Korean state media made no mention of a test or launch on Saturday but carried an article published threatening the US for “hostile acts hurting the dignity of the supreme leadership of the DPRK”.

North Korea claims success in fifth and biggest nuclear test

The Korean Central News Agency (KCNA) quoted a foreign ministry of spokesperson claiming the US had made a “declaration of war” against Kim Jong-un’s government, adding: “The moment the US comes in attack on the DPRK, the White House will come to an end before anything else.”

Launching an attack on Barack Obama’s administration, the article claimed North Korea would become “the most powerful nuclear weapons state”, concluding: “The US will have to pay a high price for malignantly hurting the dignity of the supreme leadership of the DPRK, and Obama will come to understand the meaning of the price before he leaves the White House.”

The country has made numerous claims over its capability to attack enemies including the US with nuclear weapons.

In September, it claimed to have conducted its largest ever nuclear test, generating an explosion that triggered an artificial magnitude 5 earthquake.

State media claimed the “successful” experiment, carried out at a secretive underground facility, saw a nuclear warhead detonated.

KCNA reported that the weapon could be “mounted on strategic ballistic rockets”, allowing Kim Jong-un’s military to target enemies around the world.

Inside the daily life in North Korea Show all 19 1 /19 Inside the daily life in North Korea Inside the daily life in North Korea People reading a newspaper at the metro station Inside the daily life in North Korea Thoughts of the leaders on the tram. They have about a dozen of these on every tram, all with different thoughts Inside the daily life in North Korea Young people training for a big upcoming festival Inside the daily life in North Korea People at the Pyongyang's annual marathon Inside the daily life in North Korea Many stars on one of the trolleys in Pyongyang Inside the daily life in North Korea An intimidating poster in a primary school in North Korea. Inside the daily life in North Korea Solar panels installed on a street lamp. Inside the daily life in North Korea A poster on the window next to one of the venues we visited in Pyongyang Inside the daily life in North Korea Kids playing football next to the Arch of Triumph. After a while tourists were allowed to join, so some of us did Inside the daily life in North Korea Class in an educational center in Pyongyang (where people over 17 years old can attend any classes they choose after school, for free) Inside the daily life in North Korea People waving at me during the Pyongyang marathon Inside the daily life in North Korea People having a great time dancing at a public park Inside the daily life in North Korea A metro driver in a metro station in Pyongyang Inside the daily life in North Korea Fireworks to mark the birthday of the Eternal President Kim Il Sung on our last night in Pyongyang Inside the daily life in North Korea My wonderful tour guide at a public park Inside the daily life in North Korea One of the parks in Pyongyang Inside the daily life in North Korea A person rowing some boats for the day at a river in Pyongyang Inside the daily life in North Korea The National War Museum Inside the daily life in North Korea Public park in Pyongyang

Although it was impossible to verify the totalitarian regime’s claims, analysts at South Korea's weather agency said the explosive yield would have been 10 to 12 kilotons – almost as powerful as the 15-kiloton atomic bomb the US dropped on Hiroshima in 1945.

Global leaders were united in their condemnation of the “provocation”, which came just days after North Korea tested several ballistic missiles during the G20 summit.

Japanese and South Korean officials said a medium-range ballistic missile flew about 620 miles and landed near Japan's territorial waters.

Experts cast doubt on North Korea’s claims, saying the country possesses some weapons and nuclear material but is “a very long way from having a long-range ballistic missile that can carry a nuclear warhead”.

The North Korean government is also considered highly volatile, operating outside of international law and alliances after decades of dictatorships that have seen its population indoctrinated with the Kim dynasty’s totalitarian ideology.

The isolated country has been subjected to decades of sanctions, with the toughest ever measures agreed by the UN Security Council in March, but has continued its weapons programme seemingly unabated.

