The OPP suspect a Brampton man killed in a devastating crash on Highway 403 in Mississauga Sunday in which he and his friends were ejected from the vehicle, wasn’t wearing his seatbelt.

Officers have identified the dead man as Harvir Sidhu, 21, a graduate of Louise Arbour Secondary School in Brampton, according to his Facebook profile.

Friends said he was an avid Mixed Martial Arts fan and loved watching Sunday games from the National Football League.

The OPP is investigating reports that Sidhu was driving the Nissan SUV erratically and speeding when it rear-ended a Toyota sedan on Highway 403 around 10:30 p.m. in the eastbound lanes of the highway near Cawthra Road.

OPP Sgt. Kerry Schmidt said officers are looking into witness accounts the SUV was “driving erratically” and "at high speeds" at the time of the crash.

Two friends of Sidhu who spoke to The News on condition of anonymity said Sidhu was out with his friends at the time of the crash.

Schmidt said Sidhu was killed and seven others were injured in the collision. All six occupants in the SUV were ejected when it rolled into the ditch following the collision. One other occupant of the SUV was seriously injured and transferred by land ambulance to a Toronto trauma centre, but is expected to survive, according to Schmidt.

There were three occupants in the car. The driver escaped injury, while the rear-seat passenger was ejected and injured and the front-seat passenger was also injured, according to Schmidt.

Both Toyota passengers, and four in the SUV, were taken to local hospitals with various injuries. Schmidt said all were treated in hospital and released.

Schmidt said police suspect “some or all” of the SUV occupants weren’t buckled up.