Search teams have retrieved flight recorders belonging to the Ethiopian Airlines jet that crashed in the Mediterranean last month, killing all 90 people aboard.

Passenger jets carry two recorders, a flight data recorder and a cockpit voice recorder, commonly referred to as "black boxes."

Only hours after Lebanese Transport Minister Ghazi Aridi announced the retrieval of the passenger jet's flight data recorder, an army official told Reuters that the voice recorder had also been found.

The boxes were taken to Beirut's naval base and handed to the investigators of the crash.

They will then be sent to France's accident investigation agency, to shed light on the cause of the crash.