The two devices are currently undergoing electrical tests before they can be analysed after being recovered in the Mediterranean last week.

Investigators told Reuters it would take time to fix the memory units from the Flight Data Recorder and Cockpit Voice Recorder.

Depending on the scale of the damage, the equipment may be sent abroad for repairs, The Guardian has reported.

Egypt’s Aircraft Accident Investigation Committee is due to study the devices alongside representatives from France and the US, once they have been fixed.

The committee had previously confirmed that the plane’s Data Recorder had been retrieved "in several pieces" by the deep sea search vessel, the John Lethbridge.

It is still unknown what caused the aircraft to crash on May 19 - killing all 66 people onboard.

The plane was en route from Paris to Cairo when it disappeared off radar and crashed into the Mediterranean.

According to Greek investigators, the aircraft made two sharp turns before plummeting into the sea.

France’s aviation safety agency, BEA, has stated that MS804 transmitted messages detailing smoke inside the cabin and a fault with its flight control unit before crashing.