An American Airlines flight operated by PSA Airlines was involved in a midair collision with a military helicopter on Wednesday night near Washington, D.C.

American Airlines CEO Robert Isom shared a letter to all employees sharing updates and resources following the deadly mid-air collision.

The American Airlines’ subsidiary has ties that go back decades in Ohio, and just said it was moving its headquarters to Charlotte.

US airlines had gone 16 years without a fatal crash until Wednesday night. But as impressive as that safety record had been, there have been warning signs in recent years of a significant risk of a collision like the one that just killed 67 people.

American Airlines Group Inc. (NASDAQ: AAL) owns PSA, which already has a large presence in Charlotte, operating regional flights on American’s behalf. American is based in Fort Worth, Texas, but runs its second-largest hub at Charlotte Douglas, known as CLT.

“A PSA Airlines Bombardier CRJ700 regional jet collided in midair with a Sikorsky H-60 helicopter while on approach to Runway 33 at Reagan Washington National Airport around 9 p.m. local time,” the Federal Aviation Administration (FAA) said in a statement.

D.C. police confirmed a crash had taken place over the Potomac and that search and rescue operations were taking place in the river. Donald Trump later weighed in.

PSA Airlines, a regional airline and subsidiary of American Airlines Group, announced today that it will relocate its corporate headquarters from Dayton, Ohio, to Charlotte, North Carolina, by026.

CHARLOTTE, N.C. — The crew that was on board an American Airlines jet that collided with an Army Black Hawk helicopter near Washington, D.C. was based in Charlotte, the airline confirmed on Thursday. The airline is not identifying the crew members out of respect for the families, according to CEO Robert Isom.

A retired American Airlines pilot who previously flew the plane that crashed over the Potomac River in Washington D.C. shared his thoughts and feelings on the crash.

Channel 9 is learning that victims, who tragically died in the Washington, D.C., mid-air collision, have connections to the Charlotte area.A PSA Airlines flight crew based in Charlotte was in the crash involving an American Airlines regional jet and an Army Black Hawk helicopter near Reagan National Airport in Washington,