Emergency crews were on scene at a collision on Highway 2 south of Calgary late Thursday night.
Two lanes of southbound Deerfoot/Highway 2 were closed just before the merge with Macleod/2A around 10 p.m. March 30 as responders dealt with what appeared to be a rollover collision.
It is unknown what injuries were involved but EMS was at the scene.
As of 11 p.m. traffic was still restricted as crews worked to clear the scene. Caution is advised and drivers are advised that as of March 1 all lanes must now slow to 60 km/h for responders and roadside workers.
