The move matches US President Donald Trump 25% levy on Canadian and Mexican imports to the US - and an additional 10% on China - over his concerns about illegal immigration and drug trafficking. Trudeau said he would "not back down in standing up for Canadians", but warned of real consequences for people on both sides of the border.

Critics warn his posture could embolden China to expand ties to Latin American countries, and Russia to continue advances in Ukraine.

Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions of people worldwide every day. Reuters provides business, financial, national and international news to professionals via desktop terminals, the world's media organizations, industry events and directly to consumers.

WASHINGTON (AP) — President Donald Trump on Saturday signed an order to impose stiff tariffs on imports from Mexico, Canada and China, drawing swift retaliation and an undeniable sense of betrayal from the country’s North American neighbors as a trade war erupted among the longtime allies.

President Donald Trump announced new tariffs on Mexico, Canada and China — signing them at his Mar-a-Lago club on Saturday.

China’s Ministry of Commerce said it would file a legal case at the World Trade Organization, but signaled it still wanted a stable relationship with the U.S.

President Donald Trump took action Saturday to impose new tariffs on Canada, Mexico and China, the White House said, which could have a sweeping impact on the American economy. The additional tariffs on Canadian and Mexican goods will be 25 percent,

Canada will retaliate against President Donald Trump's new tariffs with 25% levies on a raft of U.S. imports, Prime Minister Justin Trudeau said on Saturday (February 1), warning Americans that Trump's actions would have real consequences for them.