Two children are in hospital after a collision on Airport Road and Williams Parkway.
Peel police say emergency crews were called to the scene around 1:15 p.m. Sunday.
An 11-year-old girl suffered serious injuries and was rushed to a Toronto trauma centre.
A 13-year-old boy was taken to Brampton hospital with non-life threatening injuries.
There has been no word on what caused the crash.
The intersection of Airport Road and Williams Parkway is expected to be closed for several hours while police investigate.
Major Collision Bureau has been called out to collision at Airport Rd and William Pkwy. 11 year old fml taken to trauma center. Serious inj.
— Peel Regional Police (@PeelPoliceMedia) October 26, 2014