Injuries are unknown after a major house fire on 18th Avenue North and investigators remain on scene.

Members of the Kenora Fire and Emergency Service and the OPP were called to the blaze shortly after 2 a.m., with members noting the fire was fully developed when they arrived.

Kenora Fire Chief Dave Pratt says the cause of the fire is also unknown at this point, and the Office of the Fire Marshall has been called in to assist with their investigation.

Anyone with any information is asked to call the OPP immediately at 1-888-310-1122.