President Donald Trump said he will announce on Monday that the United States will impose 25% tariffs on all steel and aluminum imports, including from Canada and Mexico, as well as other import duties later in the week.

President Donald Trump says he will also impose "reciprocal tariffs" on any countries who place tariffs on the US.

U.S. President Donald Trump said he will announce on Monday that the United States will impose 25 per cent tariffs on all steel and aluminum imports, including from Canada and Mexico — a move that prompted sharp criticism from some provincial premiers.