Units from Station 3 responded for a motor vehicle collision this afternoon. At 13:35, the tones sounded for an accident with a rollover at Old Frederick Road and Sand Hill Road. Responding units found nothing at the intersection and continued checking Old Frederick Road where they found a two vehicle collision at the curve near the entrance to Alpha Ridge Park. One vehicle was in the field on its roof and one vehicle was in the roadway with both drivers already out. Two patient refusals were obtained and units cleared at 13:57.