At least 14 people were killed late on Friday after a tractor-trailer collided with a bus filled with members of a Junior League hockey team on their way to a playoff game, the Canadian authorities said.

The Royal Canadian Mounted Police said that 14 other people had been injured, three of them critically. A total of 28 people, including the driver, were on the bus at the time of the collision, investigators said. The police have released no information on the driver of the tractor-trailer.

“We are not confirming the identity of the victims at this time, including whether the deceased are players or coaches,” the police said in a statement early Saturday morning.

The crash happened about 5 p.m. on a highway about 18 miles north of Tisdale, Saskatchewan, the police said; the wreck clogged traffic and caused major delays.

In a tweet, the Saskatchewan Junior Hockey League identified the hockey team as the Humboldt Broncos. Players for the Broncos range in age from 16 to 21, according to the team’s roster.

The team had been scheduled to play the Nipawin Hawks on Friday night. “Tonight’s game is canceled,” the Hawks said on Twitter.

In a Facebook post, Scott Moe, the premier of Saskatchewan, said his province was grieving.

“Words cannot describe the loss that we feel tonight,” he said. “The news I have heard is difficult to comprehend.”

In a tweet, Prime Minister Justin Trudeau of Canada said he could not imagine what the parents of the players were going through. “My heart goes out to everyone affected by this terrible tragedy,” he said.

Heath officials were directing relatives of the Broncos to the Apostolic Church in the town of Nipawin.