In rare form China is hitting back at President Trump’s repeated scoldings over their handling of North Korea.

China hit back Monday at a Twitter rant from President Trump over trade and the North Korea crisis, saying the two issues should not be linked and that the U.S. is to blame for Pyongyang’s military buildup.

“We think the North Korea nuclear issue and China-U.S. trade… are in two completely different domains,” Chinese Vice Commerce Minister Qian Keming said at a news conference in Beijing. “They aren’t related. They should not be discussed together.”

Qian added that trade between China and the U.S. has been beneficial to both nations despite a U.S. trade deficit with China that reached almost $350 billion last year.

China’s state-run news agency Xinhua published an editorial Monday saying China is “actively working with the U.S. side to explore ways to restore the trade balance.” It blamed the North Korea nuclear issue on “the decades-long animosity” between Pyongyang and Washington. 

“As a neighbor of the (North Korea), China knows well it has a lot to lose if the Korean Peninsula slides further away from denuclearization,” the editorial said. “So it has been making strenuous efforts … to maintain the fragile calm on the peninsula and work toward an early solution to the problem.”

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Trump has repeatedly claimed that China could easily pressure North Korea into curtailing its missile and nuclear programs. He raised the issue again in tweets Saturday.

“I am very disappointed in China,” Trump said to open a two-tweet lament. “Our foolish past leaders have allowed them to make hundreds of billions of dollars a year in trade, yet… they do NOTHING for us with North Korea, just talk. We will no longer allow this to continue. China could…