Platoon chief Gary Mosburger told 980 CFPL fire crews were first notified of the blaze at 136 Albert Street around 11 a.m. Sunday.
He said when crews arrived, they saw heavy smoke on the third floor of the six-floor apartment building.
Mosburger says the fire was contained to one apartment unit on the third floor, but “a large amount of heavy smoke had gone through the building, including the stairwells.”
“Ventilation was successfully completed,” he adds.
Residents on floors one, two, four, five and six were first evacuated. Those on the third floor had to remain in their units until it was safe to leave, according to the platoon chief.
He says around 60 residents were first evacuated, then around eight residents of the third floor followed.
Mosburger says the London Transit Commission sent buses to take evacuees to a community centre. PPE was provided to them.
One person was taken to the hospital by EMS.
On Tuesday, police said there were no reported injuries in connection with the fire.
The cause and origin of the blaze is currently under investigation, but the fire has been deemed suspicious.
Mosburger said the Office of the Fire Marshal and the London Police Service are assisting with the investigation.
As of Sunday afternoon, residents living on any floor but the third had been allowed to return home.
Damage is estimated at $25,000.