The hunt for the black boxes of the crashed EgyptAir flight has been stepped up. Egypt has now deployed a submarine to scour the deep waters of the Mediterranean.
Speaking in public for the first time since Thursday’s crash, Egypt’s President Abdel Fattah al-Sisi said all possible scenarios were still being considered.
“Search equipment has been moved into position today, … a submarine normally used by our oil ministry has been brought into to help. They have a submarine that can reach 3,000 metres under water. We are working hard to recover the black boxes.”
The submarine is apparently a robotic vessel used normally to maintain off-shore oil rigs.
Human remains, wreckage and the personal belongings of some of the 66 people on board have been found floating in the Mediterranean about 290 km (180 miles) north of Alexandria.
Shortly before it disappeared off radar screens, the plane sent a series of warnings indicating that smoke had been detected on board.
The signals did not indicate what caused the smoke or fire but they offered the first clues as to what unfolded in the moments before the crash.
Air crash investigation experts say the search teams have around 30 days to listen for pings sent out once every second from beacons attached to the two black boxes.