Metro is staging emergency response drills for both Metrorail and Metrobus.
This morning, around 10 a.m., Metro will simulate an explosion on a Metrobus at the RFK stadium parking lot.
This is the second drill, the first was early Sunday morning in the tunnel between Foggy Bottom and Rosslyn stations. In that drill workers responded to an explosion on a rail car.
In today's simulation, fire and emergency response teams will assist injured passengers and react to finding an another explosion on a second bus and a call saying additional bombs have put in other buses.
Metro has designed three exercises to test the agency's emergency response working with local and federal agencies.