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.

An FAA statement said a PSA Airlines regional jet collided midair with a Sikorsky helicopter. Here’s what to know about the airline.

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.

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.

The number of people onboard and any fatalities is unknown at this time. The plane can carry up to 65 passengers and four crew members.

An American Eagle flight crew from Charlotte was onboard a plane that collided with a military Black Hawk helicopter over the Potomac River by Washington, D.C., according to multiple media reports and at least one crew member’s family.

American Airlines CEO Robert Isom said that Flight 5342 was on a normal approach to Reagan National Airport and that “we don’t know why the military aircraft came into the path of the PSA aircraft,” one of the many questions the Fort Worth-based carrier is asking in the wake of the tragedy that took 67 lives.

“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.

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.

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.

An American Airlines regional jet carrying 64 passengers and crew and a military helicopter collided in midair Wednesday night near a Washington, D.C., area airport.The Federal Aviation Administration said the crash involved a Bombardier CRJ700 regional jet operated by American’s regional carrier PSA and a Sikorsky H-60 helicopter.