DC Mayor Muriel Bowser says a passenger plane collided with a military helicopter near Reagan Airport, with rescue efforts ongoing. Muriel Bowser, the Mayor of Washington, DC, has opened a press briefing with US officials at the Reagan National Airport. “We are here to brief you on the very tragic events of this evening,” said Bowser. “We know a passenger plane coming to the airport here collided with a military helicopter.” “Our fire department, DC fire and EMS, supported by fire departments and police departments from across the Washington metropolitan region are executing a rescue operation in the Potomac River.”