A 46-year-old man is in serious but stable condition this morning following a multi-vehicle crash in Oshawa last night.
The accident happened around 8:30 p.m. on Sunday around Wilson Road and Olive Avenue. Durham Regional Police say a tractor trailer and one or two cars were involved.
The collision sent one man to Sunnybrook Hospital via air ambulance for life-threatening injuries.
Three 17-year-old teens, one female and two males, were also sent to hospital.
The two males are still in hospital with serious injuries but are in stable condition.
The roadway was closed for several hours for investigation following the crash.
It is not known if any charges have been laid at this time.