Winnipeg fire crews fought two fires in the city early Tuesday morning.

At about 3:30 a.m. fire crews were called to a commercial building in the 600 block of Dawson Road North.

Crews found a fire in the shipping area, and police said a portable space heater overheated and started the blaze, but nobody was hurt.

Damages are unknown.

About an hour later, fire crews were called to a second fire in a home in the 300 block of Riverton Avenue in the Elmwood area.

Six people escaped from the house. Two were checked by paramedics, but didn’t need to be taken to hospital.

Officials said the cause of the blaze is still unknown, as is a damage estimate.