 Meanwhile, Libya stepped up its support for anti-Western militants such as the Provisional IRA, and in 1988, Pan Am Flight 103 was blown up over Lockerbie in Scotland, killing 243 passengers and 16 crew members, plus 11 people on the ground.British police investigations identified two Libyans – Abdelbaset al-Megrahi and Lamin Khalifah Fhimah – as the chief suspects, and in November 1991 issued a declaration demanding that Libya hand them over.When Gaddafi refused, citing the Montreal Convention, the United Nations (UN) imposed Resolution 748 in March 1992, initiating economic sanctions against Libya which had deep repercussions for the country's economy.