3 Bangladeshi students killed in Canada road crash

Three Bangladeshi students living in Canada died in a road accident on Tuesday.

The accident -- which took place on Highway 427 southbound ramp to Dundas Street West in Ontario, Canada -- also left another critically injured.

A woman and a man, both 20, and a 17-year-old boy died in the crash. The injured driver, a 21-year-old man, remains in critical condition, reports the CBS citing Ontario Provincial Police (OPP). 

All four were living in Toronto on study permits from Bangladesh. Canadian authorities are yet to provide any further details about the victims. 

Ontario Provincial Police Sergeant Kerry Schmidt described the incident as a "very violent collision" that involved "extreme high rates of speed."

He said that a vehicle with four occupants was travelling southbound when it left the ramp and went over a concrete wall into the ditch before crashing into another concrete wall.

The vehicle was then redirected back into the ramp, he said, where it then caught on fire.

"The fire department were on scene and were able to extricate all four occupants from that vehicle before being consumed by fire," Schmidt said.

Two people in the back seat were pronounced dead at the scene. A female in the front passenger seat was rushed to a trauma centre, but was later pronounced dead, Schmidt said.

Authorities have already notified the families of the deceased. Police were called to the area around 11:30pm (local time). The vehicle, which was reportedly speeding, had rolled over and caught fire.

Toronto Fire Services said firefighters were required to put out the flames and rescue the trapped occupants.

Paramedics confirmed that two people were pronounced dead at the scene, while two more were taken to hospital. Another died at the hospital.