China warned the U.S. against “blackmailing and pressuring” it over trade as the Trump administration mulls trying to force officials back to the negotiating table through threats of even higher tariffs.

President Donald Trump’s officials are considering more than doubling planned tariffs on $200 billion in Chinese imports, people familiar with the deliberations said. The U.S. had threatened an additional $200 billion with levies of 10 percent, a level the administration may raise to 25 percent in a Federal Register notice in coming days, one of the people said…

China’s Ministry of Foreign Affairs said it will fight back should the U.S. further increase tariffs. “If the U.S. takes measures to further escalate the situation, we will surely take countermeasures to uphold our legitimate rights and interests,” spokesman Geng Shuang said at a regular press conference on Wednesday.