Police say that one male is dead after a three-alarm fire at a townhouse complex in Mississauga on Wednesday morning.

The fire began at a home on Copenhagen Road near Derry Road at around 11:10 a.m.

Fire Chief Tim Beckett says that crews encountered heavy flames in a unit within the complex upon their arrival and decided to immediately call for additional resources.

Several adjoining units were evacuated as a safety precaution as Crews were successful at containing the fire.

“We had several units battling a fire in the unit that extended up into the attic,” Beckett said. “It was upgraded to a third alarm due to the building. We wanted to make sure that we could contain it to a certain area.”

The male who was pronounced dead has not yet been identified, though he was reportedly a resident of the townhouse.

The Office of the Ontario Fire Marshal will be investigating the cause of the blaze.