Al-Qaeda is believed to have been behind several high-profile attacks in Istanbul, including four truck bombs in November 2003, targeting the British Consulate, the Turkish headquarters of HSBC bank and two synagogues, killing 57 people and wounding hundreds.
Smatra se da je Al-Qaeda stajala iza nekoliko velikih napada u Istanbulu, uključujući četiri kamiona-bombe u studenom 2003, godine, na čijoj su meti bili Britanski konzulat, tursko sjedište banke HSBC i dvije sinagoge, u kojima je poginulo 57 osoba, a stotine su ranjene.