Fire crews are investigating what may have caused the fire that badly damaged a home in northwest Calgary.

Firefighters were called to a home in the 100 block of Citadel Green N.W. around 7 p.m. MT Saturday.

Upon arrival, they discovered the fire in the garage of the two-storey home and began working to put it out.

Crews searched the home for occupants but found everyone had already left safely. The fire was quickly brought under control.

No injuries were reported and crews remain on scene conducting preliminary investigations.