At 2011 hours, Rescue Squad 2 was alerted to Thompson Corner Road in the area of Millwood Lane for the motor vehicle accident involving a horse and buggy.

Units arrived to find a passenger car and horse drawn buggy involved with six patients ejected from the horse drawn buggy. Crews went to work treating injuries and triaging. Three medevacs were requested to fly the six patients once crews assessed injuries.

Trooper 7, U.S. Park Eagle 1 and Trooper 6 were added to the incident. Trooper 7 went out of service on the scene due to a mechanical issue so Charles Ambulance 14 and Ambulance 299 transported to Childrens Hospital. The other four patients were medevaced to Medstar and Childrens Hospital as well.

Thompson Corner Road was shut down due and the scene was eventually turned over to law enforcement for reconstruction.

Units operated for approximately an hour and a half on the scene. Chief 2 held the Thompson Corner Road command.