Canada said it will announce retaliatory tariffs against the United States on Tuesday after relations deteriorated sharply Monday, with President Donald Trump telling Canadian leaders to 'fall in line' or face consequences 'far worse' than existing tariffs.

Canada's Prime Minister Mark Carney said he had suspended trade negotiations and Canada would retaliate dollar for dollar on the new tariffs.

Early Saturday, the United States imposed 50% import tariffs on $20 billion of Canadian goods after bilateral trade negotiations broke down.