Sub deployed in search of EgyptAir black boxes

CAIRO (AP) (FOX) - CAIRO (AP) — The search for EgyptAir Flight 804's black boxes could be intensifying with the deployment of an Egyptian Oil Ministry submarine. Egypt's president says the sub has left for the crash site in the eastern Mediterranean. President Abdel-Fattah el-Sissi says the submarine has the capacity to operate at a depth of nearly 10,000 feet. He says it "will take time" to determine the exact cause of the crash, which killed all 66 people on board.