Fuel control switches for the engines of an Air India flight that crashed last month were moved from the ''run'' to the ''cutoff'' position moments before impact, starving both engines of fuel, a preliminary investigation report said early Saturday.

A preliminary assessment in last month’s disaster focusing on fuel being cut to both engines only deepened the mystery for people grieving loved ones.

Authorities released a preliminary report on the Air India crash, following an investigation. The London-bound flight from Ahmedabad crashed minutes into the June 12 flight. Only one passenger of the 242 passengers and flight crew survived.