Indian authorities have ordered what they called “extended surveillance” of all Boeing 787 aircraft in the country’s fleet while they investigate the cause of Thursday’s crash of an Air India plane.

The Air India plane that crashed in Ahmedabad on June 12 was a Boeing 787 Dreamliner aircraft. As per a report, Air India had 34 Boeing 787 airframes in its fleet before the crash.

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.