Donald Trump has accused China of scuppering peace talks with North Korea in retaliation for its ongoing trade dispute with the US, threatening to revisit war games with South Korea if sufficient progress cannot be made.

Tweeting a White House statement in segments on Wednesday, Mr Trump primarily took aim at Beijing, accusing China’s Xi Jinping of putting North Korea’s Kim Jong-un “under tremendous pressure” not to work with the US.

“At the same time, we also know that China is providing North Korea with considerable aid, including money, fuel, fertilizer and various other commodities,” the statement said. ”This is not helpful!”

The statement also included a thinly veiled threat towards North Korea, warning military exercises with South Korea and Japan could be resumed “instantly” if Mr Trump gave the order. The US agreed to halt the war games after Mr Trump’s summit with Mr Kim in Singapore, in a major concession to North Korea’s demands.

Military leaders were caught by surprise when he ordered that suspension, describing the exercises as “provocative” and expensive.

Mr Trump still thinks “there is no reason at this time to be spending large amounts of money on joint US-South Korea war games”, according to the statement. “Besides, the president can instantly start the joint exercises again with South Korea, and Japan, if he so chooses. If he does, they will be far bigger than ever before.”

Above all else, the tweets serve to highlight Mr Trump’s idiosyncratic method of conducting diplomacy – threatening a huge show of force and dealing out accusations, while also insisting on the warmth of his relationships with both Mr Kim and Mr Xi.

On North Korea, the statement added: “The president believes that his relationship with Kim Jong-un is a very good and warm one”. On China, it said the trade dispute represented “differences [that] will be resolved in time by President Trump and China’s great President Xi Jinping. Their relationship and bond remain very strong.”

Back in June there were hopes that the gesture of shelving the US-South Korea exercises would foster goodwill and help nudge the North towards denuclearisation talks. But beyond returning the potential remains of about 55 American soldiers missing from the Korean War, and its continuing suspension in its own missile and nuclear tests, there has been little movement from Pyongyang.

As a result, the US abandoned a planned trip to North Korea by Secretary of State Mike Pompeo last week, citing the lack of progress.

As concerns grow that North Korea is in fact expanding some of its nuclear facilities, Mr Trump’s attacks on Beijing have become more pointed.

Korean relatives separated by the war are reunited near the border Show all 15 1 /15 Korean relatives separated by the war are reunited near the border Korean relatives separated by the war are reunited near the border North and South Korean relatives, many of whom have been separated since the Korean War of 1950-53, met today at the Mount Kumgang resort near the Demilitarised Zone AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Lee Keum-Seom (92) meets with her North Korean son Ri Sung Chol (71) Reuters Korean relatives separated by the war are reunited near the border South Korean Kim Choon-Sik (80) meets his North Korean sister Kim Choon-Sil (77) AFP/Getty Korean relatives separated by the war are reunited near the border North Korean Cho Soon-Do (89) meets with her South Korean sister Cho Hae-Do (86) and brother Cho Do-Jae (75) Getty Korean relatives separated by the war are reunited near the border South Korean Hwang Woo-Seok (89) meets his North Korean daughter Hwang Young-Sook (71) AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Lee Moon-Hyuk (95) meets his North Korean nephew Ri Kwan Hyuk (80) AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Lee Keum-Yeon (87) meets her North Korean relative AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Han Shin-Ja (99) weeps with her North Korean daughter Kim Kyong Sil (72) AP Korean relatives separated by the war are reunited near the border North and South Korean family members look through photo albums as they meet during a reunion Reuters Korean relatives separated by the war are reunited near the border South Korean Yoon Heung-Gyu (92) talks with his North Korean relatives AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Jo Hye-Do (86) hugs her North Korean sister Jo Soon-Do (89) AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Kim Jong-Tae (81) meets his North Korean nephew Kim Hak Soo (56) AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Ham Sung-Chan (93) hugs his North Korean brother Ham Dong Chan (79) Reuters Korean relatives separated by the war are reunited near the border South Korean Lee Keum-Seom (92) meets with her North Korean son Ri Sung Chol (71) AFP/Getty Korean relatives separated by the war are reunited near the border South Korean Kim Kwang-Ho (80) meets his North Korean brother Kim Kwang Il (78) Reuters

China cooperated with the US last year in adopting tough international sanctions against North Korea and maintains it is still enforcing the restrictions adopted by the UN Security Council.