Four families are left without a home in St. Albert after a fire Friday at a townhouse complex.

Twenty-four firefighters from St. Albert responded to a call about the fire at 8:44 p.m., and 18 from Edmonton later responded to a call for support.

According to a statement released Monday by Everett Cooke, director of emergency services for the city of St. Albert, investigators have not yet determined the cause of the fire. An estimate of the damage is not yet available.

Cooke said the investigation into the fire should be completed by the middle of next week.

St. Albert, population 72,000, borders northwest Edmonton.