Stores in Canada have been removing U.S.-made bourbon from their shelves in retaliation for stiff tariffs placed on the nation's goods.

U.S. President Donald Trump on Tuesday ramped up the burgeoning trade war with Canada, vowing to double tariffs set to take effect within hours on all imported steel and aluminum products from America's northern neighbor to 50% - although he later said he would likely lower them after Canadian officials agreed to talks.