All 64 people aboard an American Airlines jet that collided with an Army helicopter were thought to be dead in what was likely to be the worst US aviation disaster in almost a quarter century, officials say.

Three people aboard the Army helicopter are also thought to be dead.

President Donald Trump has suggested that the Federal Aviation Administration’s diversity efforts had made air travel less safe, asserting his opinion even though the crash has yet to be fully investigated and there has been no determination as to whether the FAA did anything wrong.