Donald Trump has cancelled US Secretary of State Mike Pompeo's upcoming visit to North Korea, citing a lack of progress on denuclearisation.

​"I have asked Secretary of State Mike Pompeo not to go to North Korea, at this time, because I feel we are not making sufficient progress with respect to the denuclearisation of the Korean Peninsula," Mr Trump tweeted on Friday afternoon.

"Additionally, because of our much tougher Trading stance with China, I do not believe they are helping with the process of denuclearisation as they once were," he added.

Mr Pompeo was scheduled to arrive in Pyongyang next week with his newly appointed special envoy, Stephen Biegun. The trip, Mr Pompeo's fourth as secretary of state, was intended to build on agreements reached between the two countries at a joint summit in Singapore earlier this year.

The secretary told reporters this week that he hoped to "make further diplomatic progress towards our objective" of completely denuclearising the Korean Peninsula – a project North Korean leader Kim Jong-un agreed to work towards during the summit in June.

But North Korean officials have said diplomatic talks are currently "deadlocked," and have accused the US of making "gangster-like demands". US intelligence officials say North Korea has actually increased its production of enriched uranium in recent months, and intelligence reports suggest they have started work on yet another ballistic missle.

Singapore Summit: historic first meeting between Trump and Kim Jong-un Show all 20 1 /20 Singapore Summit: historic first meeting between Trump and Kim Jong-un Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim leave following their historic meeting AFP/Getty Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim sign a document committing to peace between their nations, amongst other things EPA Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump holds up a document that both he and Mr Kim have signed AFP/Getty Singapore Summit: historic first meeting between Trump and Kim Jong-un The two leaders reach out to shake hands for the first time AP Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim shake hands as they meet for the first time Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim walk off stage, following their historic meeting Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim take a stroll after their meeting on June 12 Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim interrupt their stroll to talk to the media AP Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Kim and Mr Trump look out over a balcony at the Capella hotel, where they held their meeting on June 12 Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump takes questions at the press conference following his meeting with with Mr Kim AP Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump appreciates the crowd in the press conference following his meeting with Mr Kim Getty Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump travels to the Istana ahead of the summit with Kim Jong Un on June 12 Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Kim Jong Un travels to the Istana ahead of the summit with President Trump on June 12 Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Kim poses for a photo with Singapore's Finance Minister Vivian Balkrishnan and Education Minister Ong Ye Kung ahead of the summit with Mr Trump Twitter/Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump shakes hands with Singapore Prime Minister Lee Hsien Loong, meeting on Monday June 11 in the Istana, Singapore's presidential palace AP Singapore Summit: historic first meeting between Trump and Kim Jong-un At a working lunch on Monday, Singapore's Prime Minister surprised Mr Trump with a birthday cake, in early celebration of his 72nd birthday later in the week EPA Singapore Summit: historic first meeting between Trump and Kim Jong-un US Secretary of State Mike Pompeo answers questions about the summit at a press briefing in Singapore on Monday, June 11 Getty Singapore Summit: historic first meeting between Trump and Kim Jong-un US President Donald Trump arrives at the Paya Lebar Air Base in Singapore on June 10, two days prior to his summit with North Korean leader Kim Jong Un Reuters Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump and Mr Kim met on Tuesday June 12 in the Capella hotel on the island resort of Sentosa, just off the south coast of Singapore AFP/Getty Singapore Summit: historic first meeting between Trump and Kim Jong-un Mr Trump boards Air Force One following the summit AFP/Getty

After Mr Pompeo's most recent visit, North Korean officials said the talks had "brought us in a dangerous situation where we may be shaken in our unshakable will for denuclearisation, rather than consolidating trust between [North Korea] and the US".

Mr Pompeo called the visit "productive".

Even as the US pushes through the talks, Mr Trump has instigated a trade war with perhaps the largest power in the region: China. The president on Thursday placed another round of tariffs on some $16m worth of Chinese goods, on top of existing sanctions on $34m worth of imports. Beijing has responded with tariffs of their own on American-made goods.

Mike Pompeo meets Kim Jong-un in North Korea

Mr Trump has previously hinted at Chinese interference with the North Korea talks, tweeting in July that Beijing "may be exerting negative pressure on a deal because of our posture on Chinese Trade". Mr Pompeo said earlier this summer that he believed China had relaxed sanctions against the North in order to undercut those imposed by the UN.

On Friday, Mr Trump said Mr Pompeo would return to North Korea in the "near future," likely after the trade dispute with China was resolved.