The mayor of Brampton says one of the three boys killed in a house fire Thursday called 911 to report the blaze, but firefighters couldn't get there in time to save the children.
Patrick Brown says the boy told the emergency dispatcher that he was stuck in the house.
Brown says it only took six minutes for fire trucks to reach the burning house, but by then, the home was fully engulfed in flames.
The boys, who have not been publicly named, but who were aged nine, 12, and 15, died after being taken to hospital.
The local fire department and Office of the Fire Marshal are investigating.
Peel Police Const. Akhil Mooken said Thursday that a mother left her home that morning to drop a younger child off at school, and returned to find the house engulfed in flames.