It occurred Friday afternoon.
The Washington County Sheriff's Office is investigating a fatal crash near Williamsport on Friday.
Deputies say fire and rescue personnel responded to Sterling Road and Bower Avenue at around noon for an accident. Authorities tell the Hagerstown Herald-Mail that a car operated by 62-year-old Martha Reid went off of Sterling Road and hit a tree.
Reid was found unconscious and in serious condition. She was taken to Meritus Medical Center where she later died.
The investigation into this crash is continuing.