Three people were killed Sunday afternoon in a collision on highway 407 near Mississauga Road.

A 1948 Chevy was travelling Westbound on the highway when the vehicle is said to have begun experiencing mechanical issues in the right tire, causing the driver to lose control and veer into the path of a coach bus travelling in the same direction.

The Chevy was t-boned by the coach bus and burst into flames due to the impact. The burning Chevy then rolled over and came to a rest in a ditch.

“There were no indications of any speed issues or any other factors,” said OPP Sgt. Vincent Idzenga, speaking with reporters at the scene.

Passerby witnessed the crash and attempted to help the victims, dragging two adult males from the burning car. They were unable to help the third victim.

Paramedics declared two occupants of the car dead at the scene, and later declared the third dead also. Identities of the victims have not yet been revealed.

All passengers aboard the coach bus, 49 in total remained uninjured, with the bus sustaining only minor exterior damage.

The 407 remained closed from Mavis Rd to Mississauga Rd for much of the afternoon and evening, opening back up at 9 p.m.

Any witnesses are asked to contact the OPP at 905-841-5777.