Metro is following Sunday morning's emergency response drill with one in Maryland Monday.
Metro will simulate an explosion aboard a bus Monday morning in the RFK Stadium parking lot to test its emergency response and coordination.
Residents who live near RFK Stadium can expect to see numerous police, fire and emergency vehicles, and may hear a loud noise between 8 a.m. and 2 p.m. Monday.
A similar drill early Sunday tested emergency response to a simulated explosion aboard a Metro train in the tunnel between the Rosslyn and Foggy Bottom stations. After midnight, hundreds of volunteers played victims, and Metro operations, emergency management and police personnel responded, as did police, fire and emergency medical services personnel from Arlington County, the District of Columbia, Alexandria, Fairfax County, and the Federal Bureau of Investigation.
The Rosslyn station stayed open during the drill, which wrapped up by about 3:30 a.m.