UPDATE: One dead, one hospitalized after Hwy. 7 collision

One person is dead and another has been airlifted to hospital after a collision on Highway 7 near Silver Lake Provincial Park Monday afternoon, according to Ontario Provincial Police.

O-P-P identify the victim as 35-year-old Samantha Stremmelar of Kitchener.

A 12-kilometre stretch of the highway was closed just after 4:30 p.m., from Zealand Road near Sharbot Lake all the way to Maberly Road.

 OPP said it's unknown when the road will re-open.

The highway is generally busy on long weekend Mondays; it's the route many cottagers take to return to Ottawa.