Multiple fatalities have been reported after a horrific incident involving American Airlines flight 5342 and a U.S. Army UH-60 Black Hawk helicopter over

An American Airlines plane carrying 60 passengers and four crew members collided with an Army Black Hawk helicopter outside Reagan National Airport near Washington, D.C. Wednesday evening. Three soldiers were onboard the helicopter and a massive search and rescue operation is now unfolding in the Potomac River.

Some experts, politicians and airport managers have been warning of the risks posed by the crowded airspace at Reagan Washington National Airport.