DC subway train collision injures three workers

A collision at a rail yard early Sunday injured three workers on Washington's Metro. The transit agency says a six-car subway train was returning to the West Falls Church Rail Yard when it rear-ended a parked six-car train. Two workers were cleaning the parked train to get it ready for service. Three employees were treated for minor injuries at a nearby hospital and released. No passengers were on board when the crash occurred at about 4:30 a.m. It was the latest in a series of recent accidents involving Washington's rail system. - Associated Press