Update: Highway 1 at Provincial Road 206 South has reopened following a serious crash.

Previously:

A portion of the Trans Canada Highway is closed Thursday morning following a serious crash. 

The eastbound lanes of the busy highway are closed at Provincial Road 206 as emergency crews attend to the scene. 

Stars Air Ambulance was also called to the scene to assist. 

There is no word on injuries at this time. 

Traffic is currently backed up and is being rerouted. Motorists are encouraged to avoid the area and find another route. 

More details to come.