The footage, captured by CCTV and played at the start of a three-day National Transportation Safety Board hearing, shows a bright flash lighting up the night sky above the Potomac River.

Investigators conclude pilots of Black Hawk did not hear warning from air traffic controllers to pass behind jet

The footage, captured by CCTV and played at the start of a three-day National Transportation Safety Board hearing, shows a bright flash lighting up the night sky above the Potomac…

It’s too early for the board to identify what exactly caused the crash. A final report from the board won’t come until next year.