Japanese auto stocks fell sharply after new U.S. tariffs against Mexico, Canada and China raised concerns about their U.S. sales of cars made in the North American trading partners and a further escalation in trade conflicts.

Follow the latest news on the tariffs and other Trump administration moves. Leaders for Canada, Mexico, and China, including Justin Trudeau, respond after President Donald Trump imposes tariffs.

Yahoo Finance will chronicle the latest news and updates on Trump's tariffs — from the threats to the eventual policy.