EgyptAir Flight 648 was a regularly scheduled international flight between Athens Ellinikon International Airport (Greece) and Cairo International Airport (Egypt). On 23 November 1985, a Boeing 737-200 airliner, registered SU-AYH, servicing the flight was hijacked by the terrorist organization Abu Nidal. The subsequent raid on the aircraft by Egyptian troops killed 56 of the 86 passengers, 2 of the 3 hijackers and 2 of the 6 crew, making the hijacking of Flight 648 one of the deadliest such incidents in history.

Omar Mohammed Ali Rezaq is a Lebanese-born Palestinian militant who is the lone surviving hijacker of EgyptAir Flight 648 in 1985. He was a member of Abu Nidal. The plane was hijacked by a group of three people. The remaining two hijackers were killed, either during in-flight shooting with the plane's sky marshal, Methad Mustafa Kamal, or after Egyptian commandos stormed the hijacked plane.