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.

Metro is investigating.