In 2007, five young Muslims with Al-Muhajiroun connections – Omar Khyam, Waheed Mahmood, Anthony Garcia, Jawad Akbar and Saladhuddin Amin – were convicted of a multiple bombing plot to use fertiliser bombs "which police say could have killed hundreds of British people. The men were caught after police and MI5 launched a massive surveillance operation." The surveillance culminated in a raid called Operation Crevice. The targets included "the Bluewater shopping centre in Kent, the Ministry of Sound nightclub in London and Britain's domestic gas network." According to Professor Anthony Glees, director of the Brunel Centre for Intelligence and Security Studies: