A woman sustained major injuries Tuesday afternoon when she was struck by a vehicle while walking in a crosswalk on Fulton Road.

The woman, whose name was not disclosed, was walking south on Fulton Road at about 3 p.m. when she began crossing Guerneville Road in the crosswalk. A vehicle making a right turn onto westbound Guerneville Road from Fulton struck the woman.

She was taken to a hospital and was being treated for life-threatening head injuries.

The collision is under investigation.

Anyone who witnessed the collision is asked to call Officer Hiroshi Yaguchi at 543-3636.