Southbound Highway 400 lanes have reopened after numerous collisions shut down the highway south of Highway 88, the OPP says.

The southbound lanes were closed from Highway 400 to Canal Road due to snowy and icy road conditions.

The highway remained closed until the collisions were cleared.

There are no major injuries reported, however police say there were several vehicles in the ditch.

Traffic services and emergency services were at the scene.