TORONTO — A man wearing a police uniform went on a shooting rampage in the Canadian province of Nova Scotia on Sunday, killing 13 people, in the deadliest such attack in the country in 30 years. Officials said the suspected shooter was also dead.

A police officer was among the dead. Several bodies were found inside and outside one home in the small, rural town of Portapique, about 60 miles north of Halifax. Overnight, police began advising residents of the town — already on lockdown because of the coronavirus pandemic — to lock their doors and stay in their basements. Several homes were set on fire as well.

Police identified the man believed to be the shooter as Gabriel Wortman, 51, who was thought to live part-time in Portapique. Authorities said he disguised himself as a police officer in uniform at one point and made his car look like a Royal Canadian Mounted Police cruiser.

Wortman was arrested by the RCMP at a gas station in Enfield, just outside Halifax. Police later announced that he had died.

RCMP spokesman Daniel Brien confirmed that 13 people had been killed as had the shooter. He said he could not rule out that the death toll could still rise. Already, that makes it one of the worst shootings in Canadian history.

Police have not provided a motive for the attack, but RCMP Chief Superintendent Chris Leather said many of the victims did not know the shooter.

“That fact that this individual had a uniform and a police car at his disposal certainly speaks to it not being a random act,” Leather said. He added that police believe he acted alone.

The dead officer was identified as Constable Heidi Stevenson, a mother of two and a 23-year veteran of the force. Another officer was also injured.