Foreign relations of Libya under Muammar Gaddafi 1984, Libyan refugees in London protested against the execution of two dissidents. Libyan diplomats shot at 11 people and killed Yvonne Fletcher, a British policewoman. The incident led to the breaking off of diplomatic relations between the United Kingdom and Libya for over a decade. Two months later, Gaddafi asserted that he wanted his agents to assassinate dissident refugees, even if they were just on pilgrimage in the holy city of Mecca—in August 1984, a Libyan plot in Mecca was thwarted by Saudi Arabian police. After the December 1985 Rome and Vienna airport attacks, which killed 19 and wounded around
Embassy of the United States, London the man was planning to hijack the aircraft and crash it into the United States embassy in London, using the rooftop eagle to identify it from the air. Sweden's Security Service, Säpo, denied the claims and called the reports "false information". The man was subsequently cleared of all terrorism-related charges. The security threat against the embassy prompted the U.S. government to consider moving the embassy. Several British media outlets reported that the U.S. government had wished to use Kensington Palace as their embassy, which allegedly had been vetoed by Queen Elizabeth II, as several members of the British Royal Family