(Updated at 11:35 a.m.) Arlington County Police are investigating a serious pedestrian accident on a busy street in the center of Clarendon.

An adult male was struck by a Honda Civic coupe heading eastbound on Clarendon Blvd, near the intersection with N. Highland Street, around 12:30 a.m., according to initial reports. The man suffered life-threatening injuries and was transported via ambulance to George Washington University Hospital.