Fog created low visibility and tricky driving conditions on Edmonton streets Saturday morning with collisions reported around the city, several on the Anthony Henday.

Edmonton Police Service said there were 71 property collisions Saturday, including 19 hit-and-run collisions and six collisions involving injuries. 

The eastbound lanes of the Henday reopened to traffic at about 11:30 a.m. after a full closure earlier in the morning. 

The eastbound and westbound lanes of the Henday were closed from Manning Drive to 97th Street while police dealt with a collision at 66th Street involving two semi-tractor trailers and two vehicles. Injuries were not known. 

Motorists were urged to use caution and keep their headlights on.

Leduc RCMP were also reporting a serious collision on Highway 2A at Township Road 490.

Environment Canada has issued a fog advisory for Edmonton and a number of areas in east and central Alberta. The fog lifted Sunday morning.

Flights from the Edmonton International Airport were also delayed because of fog on Saturday, EIA spokesperson Traci Bednard confirmed.