China has reiterated its threat to take “necessary countermeasures to defend its legitimate rights and interests” following President Donald Trump’s decision to impose 10% tariffs.

Mexican President Claudia Sheinbaum and Canadian Prime Minister Justin Trudeau said Monday that their countries have avoided hefty U.S. tariffs — for now.

Mailed packages from China must undergo formal customs entry under new tariffs scheduled to be implemented on Tuesday, according to a notice from the U.S. Customs and Border Protection posted online on Monday.