A house in Cranston in southeast Calgary was badly damaged in a two-alarm fire late Thursday night.
The two-storey duplex was fully engulfed in flames and the fire was beginning to spread to neighbouring homes when fire crews arrived at about 11 p.m., the fire department said in a release.
A second alarm was immediately called to bring in extra resources to fight the fire.
It wasn't possible for fire crews to search the inside of the house, but officials determined that all of its occupants had made it out safely.
Firefighters were able to quickly bring the blaze under control, the fire department said.
A 35-year-old man was taken to hospital as a precaution.
Crews remained on scene through the night to put out hot spots.
The cause of the fire is under investigation.
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