UPDATE: 4:22 p.m.
The Coquihalla is now open following a vehicle incident.
Drivers should expect delays south of Merritt.
Southbound lanes of the Coquihalla Highway are closed following a collision involving a semi-truck.
Road cameras show a long line of vehicles backed up behind a jackknifed semi-truck near Falls Lake.
Crews are on scene assessing the situation.
Alternate routes are available via Highway 1 and Highway 3.
DriveBC does not show an estimated time for the road to reopen.