Officers are searching for witnesses following a fatal collision in Georgina on Tuesday afternoon that left one dead and two in serious condition, York Regional Police say.
At about 2:45 p.m., police say they were called to the area of Glenwoods and Warden avenues for a report of a vehicle off the road.
According to a tweet, the vehicle, which was carrying three occupants, rolled over into a ditch.
Two of the occupants were transported to hospital in serious condition and one died at the scene, police say.
Officers have advised residents to expect road closures and traffic delays in the area as they continue to investigate.
Police say anyone with information or dashcam footage can contact York Regional Police at 1-866-876-5423, ext. 7704, or Crime Stoppers anonymously at 1-800-222-8477.