Trump says he will sign an executive order imposing a 25% tariff on all goods coming from Mexico and Canada and a 10% tariff on those from China.

President-elect Donald Trump on Monday pledged big tariffs on the United States' three largest trading partners - Canada, Mexico and China - detailing how he will implement campaign promises that could trigger trade wars.

The president-elect calls it an effort to force them to crack down on illegal immigration and drug smuggling into the US.