A two-car crash on Laurel Avenue in Brick Township Tuesday afternoon may have been the result of a medical episode. Township police said the driver of a minivan veered off the roadway, side-swiped a mailbox, struck a parked car and hit a retaining wall at Community Drive before coming to a stop.

The driver was found unconscious with a head injury sustained in the crash and is listed in critical condition at the Jersey Shore University Medical Center.

Laurel Avenue between Mantoloking Road and Community Drive was closed to vehicular traffic for about 2 hours during the investigation.