Myles Sanderson, seen in a police handout photo, is described by police as six-foot-one and 240 pounds with black hair and brown eyes. Police say Sanderson, who has a violent criminal record and is considered dangerous, remains on the loose, but he may be injured. THE CANADIAN PRESS/HO-Saskatchewan RCMP, *MANDATORY CREDIT*

Possible sighting of stabbing suspect on Saskatchewan First Nation

A notice sent through Saskatchewan’s emergency alert system says investigators have received a report of a possible sighting of a man on the James Smith Cree Nation who is a suspect in a mass stabbing.

Anyone in the area is advised to seek immediate shelter or shelter in place.

Myles Sanderson is one of the accused in a deadly stabbing spree that happened northeast of Saskatoon over the weekend.

RCMP have said his brother, Damien Sanderson, who had also been a suspect, was found dead Monday in the area with injuries that were not believed to be self-inflicted.

Police have previously said Myles Sanderson could be in Regina and may have been injured.

Including Damien Sanderson, 11 people have died.