Global probe underway into Air India Ahmedabad crash that killed 241. Boeing, NTSB, and FAA join AAIB as black box data is analyzed. DNA matches confirm 92 victims; rescue efforts praised.

Based on images of the Air India crash that killed over 200 people in the western Indian city of Ahmedabad on Thursday, experts predicted a difficult recovery and investigation operation exacerbated by the risks of unstable structures and gas leaks.

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At least 270 died when the Air India flight crashed into the campus of a medical college in Ahmedabad shortly after takeoff on Thursday. Only one passenger among the 242 aboard survived. At least 29 others on the ground, including five medical students inside the hostel, were also killed.