The death toll in the deadly Air India plane crash rose to 270 on Saturday, with families increasingly getting upset due to delays in handing over bodies which were badly charred in the tragedy in the western Indian city of Ahmedabad.

An investigation is underway as to what caused an Air India airliner carrying 230 passengers and 12 crew members to crash shortly after takeoff on Thursday.

Indian investigators have recovered the digital flight data recorder or the black box of the Air India flight that crashed a day earlier.