The incident happened near Victoria Park and Surrey avenues around 3:30 p.m
According to police, a passenger was trapped in a vehicle and was found unconscious. Emergency crews performed CPR through the car window and were able to revive them.
A woman in her 80s was taken to a trauma center in serious condition, police said. She was later pronounced dead at the hospital.
Paramedics say two other patients, a man and a woman, were taken to hospital with non-life threatening injuries.
Roads in the area were closed for several hours while police investigated the incident.
Anyone with information is asked to contact traffic services at 416-808-1900.
CRASH: UPDATEVictoria Pk/Surrey- Police are on scene and investigating- A woman in her 80s was pronounced dead in hospital- Victoria Park Av is closed in both directions between Surrey Av + Ruscica Dr- All witnesses are contacting with @TrafficServices 416-808-1900 ^lb
— Toronto Police Operations (@TPSOperations) August 5, 2022