West Grey Police Service said three local youths were killed in a single-vehicle collision near Allan Park on Tuesday afternoon.
According to police, the collision was reported around noon on Concession 2 SDR near Allan Park Road. The involved vehicle had four occupants, all between the ages of 15 and 17.
West Grey Police said despite the best efforts of emergency services, three of the occupants were pronounced dead on scene.
The fourth was airlifted by Ornge to London Health Sciences Center with life-threatening injuries.
The road remains closed as WGPS, with help from the OPP Technical Collision Investigations Unit continues to investigate.
Police said the identity of those involved will not be released at this time.
“The West Grey Police Service extends their deepest condolences to the family, friends and loved ones affected by this devastating loss,” read a statement from WGPS. “We ask that the privacy of those involved be respected as families and the community come to terms with this tragedy.”