A pedestrian has been critically injured after being struck by a vehicle on the Gardiner Expressway on Tuesday evening.

Emergency crews responded to a collision on the westbound lanes of the highway east of Jameson Avenue shortly after 6 p.m.

Toronto police said the pedestrian, a man in his 30s, was rushed to the hospital. He suffered life-threatening injuries, according to Toronto paramedics.

The driver remained at the scene, police said.

All the westbound lanes of the Gardiner Expressway between Spadina and Jameson avenues were due to the collision but they have since reopened.