The Winnipeg Fire Paramedic Service is investigating the cause of a fire in the 400 block of Alfred Avenue Tuesday night.

Fire crews were called out to the one-and-a-half storey, wood-frame house just before 11 p.m.

A spokesman for the fire department said crews quickly extinguished a fire on the second floor of the house.

There were no people in the house at the time of the fire.

There is no estimate of the cost of damage at this time.