On November 29, 2009, about 4:28 a.m. eastern standard time, Washington Metropolitan Area Transit Authority (WMATA) Metrorail train 902 struck the rear of a standing WMATA train at the West Falls Church rail yard, which is located in Falls Church, Virginia. No passengers were on board either train at the time of the collision; however, two WMATA maintenance department car cleaners were on board the struck train. The employees sustained minor injuries from the accident and were treated and released by a local hospital. The operator of train 902 also sustained minor injuries and was treated and released by a local hospital. Damage to train equipment was estimated to be about $9 million.