Egypt has deployed a submarine to the Mediterranean Sea in search of the black boxes from EgyptAir Flight 804, President Abdel-Fattah el-Sisi said Sunday.
Searchers have recovered parts of the plane wreckage -- passengers' personal belongings, life vests, the plane's chairs and even body parts -- but are still scouring the Mediterranean for the flight data and cockpit voice recorders that would likely reveal what went wrong on the flight.
The submarine can reach a depth of 3000 meters (about 9,800 feet), Egyptian TV reported.
