RFD units were alerted just before 10:30pm to an auto accident on Route 422 in the area of the 181.4 milemarker. Fire & EMS units from Royersford responded with Black Rock Volunteer Fire Company and Trappe EMS to find a single vehicle rollover accident in the median of the roadway. Fire personnel mitigated vehicle hazards while one occupant was transported for continuing treatment. Fire units cleared the scene in under an hour with Fire Police remaining on the highway until the vehicle could be removed by tow services.