President Donald Trump’s long-threatened tariffs against Canada and Mexico finally went into effect Tuesday, putting global markets on edge and setting up costly retaliations by the United States’ North American allies.

Follow along for live updates as markets and traders brace for impact after Donald Trump said his plan to tariff goods from Canada, Mexico and China will move forward.

President Donald Trump said Monday 25% tariffs on Mexico and Canada will be implemented Tuesday and another 10% against China. U.S. stocks tumbled after the announcement. Canada announced equal reciprocal tariffs,