On December 21, 1988, Pan Am Flight 103 was bombed while flying over Lockerbie, Scotland, killing all 259 people on board and 11 people on the ground. The bombing was attributed to Libyan terrorists, and it remains one of the deadliest acts of terrorism in aviation history. The crash site became a symbol of international terrorism, and the incident led to a significant increase in airport security measures worldwide. The bombing also resulted in the imposition of sanctions on Libya and strained diplomatic relations. In 2001, a Libyan man was convicted for his role in the attack.