Investigators with the National Transportation Safety Board are in the initial stages of what's setting up to be a sprawling and consequential probe into a deadly, midair crash between a regional passenger jet and a military helicopter just outside D.

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.

We are now at the point where we are switching from a rescue operation to a recovery operation,” said John Donnelly, the fire chief in the nation’s capital.

No survivors found in crash between Black Hawk helicopter and American Airlines jet over Potomac River near DC

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.

An airplane collided with a helicopter while trying to land at the Ronald Reagan Washington National Airport on Wednesday night, officials said.

First thing is the communication between the air traffic control and the helicopter and the plane … There’s no direct communication between the civilian and the military helicopter and airplane. Instead,