Air India flight 171 was involved in a “tragic accident,” the airline’s chairman said. The flight had been due to fly from Ahmedabad to London’s Gatwick airport.

After an Air India plane with over 242 passengers onboard crashed on Thursday, the Gujarat ATS has recovered a DVR from the debris of the plane site.

Investigators recovered the black box of the ill-fated Air India Boeing 787-8 Dreamliner (AI171) from the rooftop of a medical college hostel, a day after it crashed in Ahmedabad, killing 241 of the 242 on board.