Air India said on Wednesday it will cut international operations on its widebody aircraft by 15% for the next few weeks, citing ongoing safety inspections and operational disruptions following last week's deadly crash of one of its Boeing 787 Dreamliners.

Investigators in India are studying the black boxes of a Boeing 787 Dreamliner after recovering them from the aircraft wreckage to ascertain the cause of last week’s plane crash that left at least 270 people dead.

The preliminary finding gives investigators a new line of inquiry as they study a crash that killed all but one of the plane’s passengers.