Damien Sanderson, one of the perpetrators of one of the worst acts of mass violence in Canada’s history, was found dead in the James Cree Smith Nation in Saskatchewan, according to Canadian Police. His brother, Myles Sanderson, who is still at large was last spotted in the city of Regina, the capital of the province.

The duo had killed 10 people and left at least 18 others injured a series of stabbings in the John Cree Smith Nation and the village of Weldon in Saskatchewan on Sunday. A state-wide alert concerning two dangerous suspects was issued after reports of several stabbings were reported by the Royal Canadian Mounted Police.

“There could be more injured,” Rhonda Blackmore, commanding officer of the Saskatchewan RCMP, said. “We are currently actively looking for it, dedicating maximum resources to this.”

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One of the two suspects has been identified as Damien Sanderson. RCMP believes that Damien is traveling with another person named Myles in the Arcola Avenue area in Regina. 

“As the suspects are at large, we have also asked for the alert to be extended to Manitoba and Alberta,” RCMP said in a news release just after noon Sunday.

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Authorities said that Damien Sanderson was 5ft 7in and 155lb. He had black hair and brown eyes. He was last seen in a what looked to be a black Nissan Rogue with a Saskatchewan licence plate 119 MPI.

Rhonda Blackmore, commanding officer of the Saskatchewan Royal Canadian Mounted Police, said that they were trying to determine the relationship between the two suspects.

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While no possible motive has been revealed by police, the initial investigation reportedly hints that the stabbings were random acts of violence, the Guardian reported.

Regina police said that the Royal Canadian Mounted police had “deployed additional resources for public safety throughout the city, including the football game at Mosaic Stadium.”

People in the area have been advised to take precautions and consider sheltering in place.

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“Do not leave a secure location and do not approach suspicious persons. Do not pick up hitchhikers. Report suspicious persons, emergencies or information to 9-1-1. Do not disclose police locations,” authorities said.

The Prince Albert Police Service and Regina Police Service were also assisting Saskatchewan RCMP to locate the suspects.

Stars Air Ambulance spokesperson Mark Oddan said two helicopters were dispatched from Saskatoon, Saskatchewan and another from Regina.

“Do not leave a secure location and do not approach suspicious persons. Do not pick up hitchhikers. Report suspicious persons, emergencies or information to 9-1-1. Do not disclose police locations,” police said.