One of the "black boxes" of the plane on the EgyptAir Flight 990 has been recovered, US searchers announced on November 9.

"Black Boxes" are the flight data recorder and cockpit voice recorder, two vital instruments to help determine the cause of a plane accident.

A US National Transportation Safety Board spokesman confirmed the find, without identifying which recorder was recovered.

The UNvy waged a round-the-clock search on Monday for the boxes, eight days after the Boeing 767 plane crashed some 60 miles off Nantucket Island, Massachusetts, shortly after it took off from John F. Kennedy International Airport in New York.

All 217 people on board were killed.

Two robots have been used during the operation in an effort to find and catch the boxes amid the wreckage at the Atlantic seabed 80 meter deep.