Shares of automakers and megacap tech stocks bore the brunt of a wider equity pullback on Monday after U.S. President Donald Trump ordered sweeping tariffs against Mexico, Canada and China, sparking fears of a global trade war that could hit growth.

U.S. futures and global stocks were hit by a selloff early on Monday as markets around the world braced for a potential trade war triggered by President Donald Trump’s decision to impose sweeping tariffs on imports from Canada, Mexico, and China—which he acknowledged will cause “some pain” for American consumers.