President Trump said on Friday that China is violating the "fast deal" it made with the nation to pare back tariffs during negotiations.

President Donald Trump said Friday that he will no longer be “Mr. NICE GUY” with China on trade, declaring in a social media post that the country had broken an agreement with the United States.Hours later,

The bad news is that China, perhaps not surprisingly to some, has totally violated its agreement with us," said Trump.

The flurry of punitive measures taken against China by the Trump administration over the last few days was prompted by a belief among US officials that China has failed to live up to commitments it made in trade talks earlier this month,

Beijing has high hopes for its C919 single-aisle jet after years of delay, but the plane depends on engines, avionics and other gear from Western companies.

President Donald Trump sought to calm markets late Friday after upsetting them earlier with tough talk on China, saying he hoped to speak with Xi Jinping.

US stocks end little changed after Trump says China violated tariff terms. Administration maps new curbs. Investors shrug off cooler inflation data.

The Trump administration orders top US chip design software firms to halt sales to China, escalating tech tensions amid ongoing trade negotiations.