Prime Minister Justin Trudeau continues to warn that new restrictions on travel are coming.

In an update outside his Rideau Cottage home in Ottawa, he urged anyone with travel plans to cancel their tickets. That includes going abroad or to another part of the country.

“The bad choices of a few will never be allowed to put everyone else in danger,” he said.

Trudeau said while the number of new cases linked to travel remains low, a single case imported from abroad is a case too many.

Trudeau said the government wants to ensure any measures don’t cut off the flow of trade, noting that commercial flights coming into Canada from around the world might have non-essential travellers on board, but essential cargo in the belly of the plane.

Trudeau pointed out that most who return from outside the country must quarantine for two weeks, and face financial penalties or jail time if they do not.

Most are also now required to show proof of a negative COVID-19 test before arriving in Canada.

Officials are concerned about the spread of more contagious variants of COVID-19 first detected in the U.K., South Africa and Brazil.