UPDATE: Mother and son killed in suspected impaired driving crash

A two-year-old boy and his mother are dead. The child's father is fighting for his life in hospital.

It's the result of a crash in Mississauga that police believe was caused by impaired driving.

Two cars collided around 2 a.m. at Mavis and Burnhamthrope.

Cam Woolley-CP24

It's believed the family was in an eastbound vehicle that was broad-sided by a vehicle heading northbound at a high rate of speed.

The suspect, an 18-year-old man, was also injured. He was arrested in hospital.

Mississauga crash

CP24