The Associated Press

WASHINGTON (AP) - Officials with Washington's Metro transit system say two employees have been injured after a rail car struck another train in the West Falls Church rail yard.

Metro officials said Thursday that a train traveling at a low speed unintentionally hit a stationary train about 6 p.m. Wednesday. The two unidentified workers' injuries are non life-threatening.

Spokeswoman Angela Gates says the damage to the rail cars is minor.

She says the injured employees will receive alcohol and drug tests, which is standard procedure. The agency is investigating.

Gates said the trains were being operated manually, as all Metro trains have been since a collision involving two trains killed nine people in June. Officials are investigating a faulty signal system in the deadly accident.