Two people were killed and two others injured after a three-vehicle collision north of Toronto Wednesday morning.

York Regional Police said one person was ejected from their vehicle when the crash occurred on Highway 11, south of Bathurst Street, in East Gwillimbury at about 6 a.m.

The driver and passenger of a Ford Windstar were without vital signs when police arrived.

The driver, a 27-year-old man from Aurora, and his passenger, also 27, were pronounced dead at the scene

The driver of a Ford F-150, a 61-year-old man, was transported to hospital with non life-threatening injuries.

The driver of a Pontiac Grand Am, a 31-year-old woman, was also involved in the crash. That driver was treated by paramedics at the scene before being released.

Sgt. Gary Phillips said a damp road and foggy patches may have been a factor in the crash.

York police said the highway was closed in both directions near the site of the collision as police investigated.

The highway reopened around 3:30 p.m.

Police continue to investigate the collision and are asking anyone with information to come forward.