Emergency crews in southern Alberta were busy dealing with multiple crashes on slick winter roads that closed some highways.

In one incident, seven people were taken to hospital in stable, non-life threatening condition after a collision between a minivan and a pickup truck near Chain Lakes Provincial Park.

Two adults in their 40s, and three children under the age of 10 were in the minivan, while a man and a woman in their 70s occupied the pickup.

Near Chestermere, one woman was taken to hospital by air ambulance with possible internal injuries after her SUV collided with a flatbed truck. The male passenger of the SUV and the driver of the flatbed were uninjured.

Because of an another collision, the Trans-Canada highway was closed between Field and Golden but has since reopened. There were no further details available.

An earlier collision also tested patience on Highway 2 south of High River, with a crash affecting both directions of travel near 594 Avenue. There werwe no details on that incident either, but the highway has since reopened.

Motorists are advised to use caution on city roads and provincial highways.