One person is dead in what an EMS official said was related to "a fire of sorts" in the 2600 block of 16th Avenue S.E.
Firefighters were called to the scene just before 7 a.m. Monday to discover smoke but no fire at an apartment building in Radisson Heights.
"They forced entry and found remnants of a fire inside of the apartment, mostly extinguished on arrival, were able to clear it," said Calgary Fire Department battalion Chief Keith Stahl.
He said that when crews arrived there was light smoke in the hallway and heavy smoke coming from a second-storey suite.
The EMS official said they had no other information on the victim and no one else was injured in the incident.
It is not known whether the person died because of the fire or they died and the fire subsequently happened.
Investigators remained on scene trying to determine the cause of the fire while building residents were able to return to their suites shortly after being evacuated, Stahl said.