TORONTO (AP) — The U.S. and Canada have agreed to temporarily close their shared border to nonessential travel, President Donald Trump announced Wednesday, and the Trump administration is considering a plan to turn back all people who cross the border illegally from Mexico, two administration officials said.

Canada and the U.S. are eager to choke off the spread of the virus but also maintain their vital economic relationship. Canada relies on the U.S. for 75% of its exports.

Trump made the announcement on Twitter, saying the decision would not affect the flow of trade between the countries.

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