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.

Trump did not specify how China violated the agreement. A U.S. official said China appeared to be moving slowly on promises to issue export licenses for rare-earth minerals.