Canada will take legal action under the relevant international bodies to challenge the 25% tariffs imposed by the United States on most Canadian goods, a senior government official said on Sunday, calling the tariffs illegal and unjustified.

Canada's Prime Minister Justin Trudeau arrives on Parliament Hill to give his statement after U.S. President Donald Trump ordered 25% tariffs on Canadian imports, in Ottawa, Ontario, Canada February 1,

U.S. President Donald Trump has declared a trade war on Canada, prompting the federal government, provinces and territories to launch their own countermeasures to hit back at the American economy.