Egyptians light candles during a candlelight vigil for the victims of EgyptAir flight 804, in Cairo, Egypt, Thursday, May 26, 2016. The cause of Thursday’s crash of the EgyptAir jet flying from Paris to Cairo that killed all 66 people aboard still has not been determined. Ships and planes from Egypt, Greece, France, the United States and other nations are searching the Mediterranean Sea north of the Egyptian port of Alexandria for the jet’s voice and flight data recorders. The number 66 refers to the number of the victims. (AP Photo/Amr Nabil)