Submarine to join search for Egyptair flight’s data recorders

El-Sisi also said Egypt was jointly investigating the crash with the French government. “It is very, very important to us to establish the circumstances that led to the crash of that aircraft,” he said, on Egyptian TV channels yesterday.
He said the submarine, which has the capacity to operate at a depth of 3,000 metres (9,842 feet) below the surface, left for the site yesterday.