Two men found dead in an ice fishing tent on a lake in northeastern Alberta likely died of carbon monoxide poisoning, RCMP said Tuesday.

Police were alerted on Saturday that two men had been found deceased in a tent in a remote area of Crow Lake Provincial Park. The park is located just off Highway 63, about 130 kilometres south of Fort McMurray, Alta.

"Preliminary investigation suggests that the cause of death was carbon monoxide poisoning, likely resulting from a heating source used inside the …