EDMONTON -- Crews were called to a house fire in southeast Edmonton on Saturday night.

The fire broke out at a house at 56 Street SW and 22A Avenue SW.

Five people were inside the home when the fire started, but were able to escape unharmed.

The fire was out before 10:30 p.m.

"It's undetermined as to where exactly the fire started, there was heavy smoke and fire on all three floors, so exactly where or how it started fire investigators are in there right now trying to determine that," said Dis. Chief Howard Samyica.

Investigators haven’t determined the cause of the fire.