PINE LAKE, Alberta (AP) _ At least five people were killed and 38 others were injured Friday night when a tornado touched down at a campground in the western Canadian province of Alberta, officials said.

Several hundred trailers had been flipped upside down at the Green Acres campground and a stream of tow trucks, ambulances, rescue divers and other emergency services were descending on the site, about 90 miles north of Calgary.

The numbers of dead and wounded ``are obviously not final yet,'' said Jim Squire, spokesman for Red Deer County.