Investigators in India are studying the black boxes of a Boeing 787 Dreamliner after recovering them from the aircraft wreckage to ascertain the cause of last week’s plane crash that left at least 270

Investors and the wider public are looking for answers after Thursday’s crash of an Air India 787 jet. Both of the plane’s black boxes have been recovered.

Boeing was generating optimism. Then on Thursday a 787 crashed, raising the specter of fresh problems for Boeing and altering the message it planned to send.

Indian authorities have started handing over remains of the victims of one of India’s worst aviation disasters after identifying some through DNA tests.

India’s government is urgently inspecting all Boeing 787s after a devastating Air India crash that claimed at least 270 lives this week, the aviation minister said on Saturday, adding that the authorities were investigating all possible causes.

Air India flight AI171, a Boeing 787-8 carrying 242 people, crashed after taking off from Ahmedabad on its way to London.

The crash of a Boeing 787 passenger jet in India minutes after takeoff on Thursday is the latest incident that adds to woes at the troubled U.S. planemaker.

Air India confirmed that 241 of the 242 people on board were killed, with one survivor, a British national, being treated in a hospital.

The Air India flight fell from the sky on Thursday and killed at least 270 people in Gujarat state, officials said Saturday.