An Atlas Air Boeing 767 cargo jet — part of the Amazon Air package delivery fleet — is seen in newly released security footage diving at a steep angle moments before crashing into a shallow bay in Texas on Feb. 23, killing three crew members on board.

The video from the Chambers County Sheriff’s Office captures the final seconds of Flight 3591 before the plane hits Trinity Bay, near Anahuac, Texas. The Associated Press reported on the video on Thursday.

The crash happened near the end of a Miami-to-Houston flight. Capt. Ricky Blakeley, First Officer Conrad Jules Aska and an aviator from Mesa Airlines, pilot Sean Archuleta, were killed in the crash.

Investigators from the National Transportation Safety Board said last week that the cockpit voice recorder had been recovered.

The AP reported that flight tracking data showed that the aircraft lost more than 3,000 feet of altitude in 30 seconds. A plume of smoke can be seen rising in the distance after the plane hit the water in the security camera footage. The AP also reported that cockpit audio suggests the pilots lost control while preparing to land, but the NTSB has not yet explained why.

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