The pilot was forced to rely on instruments after overflying a sandstorm and losing reference to the ground and an air traffic beacon. After entering Israeli airspace over the Sinai desert, the Boeing 727-224 was shot down by two Israeli Air Force F-4s. 108 of the 113 people on board were killed in the incident.
The incident resulted in censorship of Israel by the ICAO. The circumstances surrounding the incident further complicated the matter, in that Israel was with war with Egypt at the time.
Source: Libyan Arab Airlines Flight 114