Fire crews were called to two blazes in Winnipeg Monday night.

A blaze on Logan Avenue destroyed a business, causing an estimated $500,000 in damage.

The call came in around 8:40 p.m. Monday and crews responded to the fire at Logan Radiator in the 1800 block of Logan Avenue. 

Officials said the shop was closed at the time when the fire started and no one was inside.

Crews faced several obstacles, including chemicals and compressed gases inside. Those hazards caused small explosions.

"The intensity of the fire initially, for the first 10 minutes, (we were) worried about the integrity of the building, worried about it collapsing," said Jim Zaborniak, platoon chief. He said they moved crews back for their safety.

Several vehicles were also inside the shop when it went up in flames.

This past summer, police said the business was one of the addresses targeted during an ongoing biker war. There were two fires at the location, including one on June 10 and one on July 16. 

Temperatures also dipped to -30 with the wind chill while crews battled the fire Monday night.

The cause of the fire remains under investigation by the arson strike force unit. 

Only hours earlier, a blaze in a two-storey home in the 200 block of Tecumseh Street forced people out onto the street.

Crews responded to the fire shortly after 6 p.m. Monday.

Officials said three adults and three teens were inside when the fire started, but all made it out safely and no one suffered any injuries.

The house was completely destroyed by the fire and damage is estimated at $250,000.

The causes of that fire also remains under investigation.