Mexican nationals will soon need a visa to come to Canada. Alternatively, they can obtain a travel authorization if they already hold a U.S. non-immigrant visa, or if they had held a Canadian visa within the last 10 years, and are travelling by air on a Mexican passport.

Immigration Minister Marc Miller made the announcement in during a Thursday morning news conference, speaking in English, French, and Spanish. The changes take effect at 11:30 p.m. ET.

This is a breaking news story. More details to come.