Four people have been taken to hospital, including one in critical condition, following a collision in Scarborough Tuesday.

The incident happened at the intersection of Markham Road and Finch Avenue East just before 6:00 p.m. and involved three vehicles, police say.

A 24-year-old woman was driving a grey Nissan Rouge east on Finch Avenue East, police say, when she struck a northbound yellow Kia Soul at the intersection.

As a result of that collision, a southbound Mazda CX5 was also struck.

Police say a 37-year-old woman was taken to a trauma centre with life-threatening injuries.

They add that three others were also transported to hospital with non-life-threatening injuries.

The cause of the collision is unknown.

Police ask anyone with information to contact them at 416-808-1900 or Crime Stoppers anonymously at 416-222-TIPS (8477).