President Donald Trump ratcheted up tariffs on Canada late Thursday, stoking tensions with a top U.S. trade partner as the two sides try to hash out a trade agreement by the end of the month. The Dow Jones Industrial Average tumbled 250 points,

Major stock indexes were slightly lower on Friday as U.S. President Donald Trump's announcement of tariffs on imports from Canada fanned worries about trade tensions, with the Canadian dollar down against the greenback.

Canadian Prime Minister Mark Carney says Canada will keep working toward a new trade framework with the United States despite U.S.