Canadian officials and experts believe that the jump in illegal crossings has been fueled primarily by immigrants arriving in Canada from India on tourism or other temporary visas.

In a characteristically bombastic threat to slap hefty tariffs on Canadian and Mexican imports to the U.S. once he takes office next year, president-elect Donald Trump said he was motivated by border issues between those countries and his own.

President-elect Donald Trump has threatened tariffs of 25% on imports from Canada and Mexico until fentanyl and undocumented migrants stop flowing over U.S. borders. Canada says it has a plan