India's aircraft accident investigation body said on Thursday it was too early to reach any "definite conclusions" on what led to the deadly Air India Boeing plane crash last month that killed 260 people.

The deadly Air India crash has renewed a decades-old debate in the aviation industry over installing video cameras to monitor airline pilot actions.

According to a report published on Wednesday by The Wall Street Journal quoting sources close to United States officials’ early assessment of evidence, the black box audio recording of the last conversation between the two pilots indicates that the captain might have turned off the switches controlling the flow of fuel to the plane’s engines.