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.

Multiple 911 callers reported the crash near the river just before 8:55 p.m., according to the Metropolitan Police Department and the District of Columbia Fire and EMS.

Several federal and state investigations have been launched after an American Airlines flight and a military helicopter collided near Ronald Reagan Washington National Airport and fell into the Potomac River,