India's aviation regulator has ordered all Boeing 787s being operated by local carriers to be inspected after an Air India crash killed 270 people this week, the aviation minister said on Saturday, adding the authorities were investigating all possible causes.

Air India said it has completed such safety checks on nine of its Boeing 787 aircraft and is in process to complete it for the remaining 24 planes.

The accident happened just weeks after the company cut a deal with the U.S. government to avoid taking criminal responsibility for a pair of deadly crashes in 2018 and 2019.