A woman is dead after her car crashed into the guardrail on Highway 11 Monday night. 

The 26-year-old Severn Township woman was alone in the car. She was pronounced dead at the scene.

OPP say she was heading south when she lost control of the car and hit the guardrail. Parts of the barrier and debris from the crash were then strewn across the highway, which caused two other vehicles to be damaged, officers say.

Police closed Highway 11 northbound at Line 5 and southbound at Line 7 overnight until about 6 a.m. The highway reopened with a single lane in each direction while crews replaced the damaged guardrail.