One person critically injured in 3-vehicle collision in Thornhill

Critical injuries after three-vehicle collision One person suffered life-threatening injuries following a three-vehicle collision involving a large truck in Thornhill.

One person is in critical condition following a three-vehicle collision involving a large truck in York Region.

The crash happened on Monday, just after 1:30 p.m., in Thornhill, near Don Mills Road and Simonston Boulevard, near Paddock Park.

York Regional Police told CTV News Toronto that one person was taken to the hospital with “serious, life-threatening injuries.”

The force’s Major Collision unit is on the way to the scene, a media officer said.

Currently, Don Mills Road is closed at the two ends of Simonston and motorists are being asked to avoid the area.

More to come. This is a developing story.