A car crash Thursday afternoon has left an elderly woman from Mahopac hospitalized in critical condition.

Mary Callaghan, 81, was traveling eastbound on Highridge Road at a high rate of speed.

Carmel police say Callaghan struck a rock wall in front of 63 Mount Hope Road, after failing to stop at a stop sign proceeding through the intersection.

Officials say they are trying to determine if she suffered a medical emergency prior to the accident.

Callaghan was taken to Westchester Medical Center.