"The claims made by the US contradict the facts, they are irresponsible. We express deep concern in this regard and have already made a submission to the US side," the spokesman said.
The statement is a response to US President Donald Trump, who announced on Friday that he had told Secretary of State Mike Pompeo to cancel his trip to North Korea, scheduled for next week. According to Trump, China was not helping with the denuclearization issue as much as before because of the current trade dispute between the two countries.
READ MORE: Chinese Foreign Minister Vows to Assist North Korean Economy
This is not the first time that Trump has criticized Beijing on the Korean issue. Earlier this month the US president reportedly said that "China maybe is getting in our way" in nuclear talks with Pyongyang, without providing additional details to his claim, causing a backlash from the Chinese government.