A handout picture released by the Syrian Arab News Agency (SANA) on May 12, 2012, shows workers removing the debris following twin suicide bombings in Damascus that killed 55 people on May 10. Al-Nusra Front, an Islamist group unknown before the Syrian revolt, released a video claiming responsibility for twin suicide bombings. AFP PHOTO/HO/SANA == RESTRICTED TO EDITORIAL USE – MANDATORY CREDIT “AFP PHOTO / HO / SANA” – NO MARKETING NO ADVERTISING CAMPAIGNS – DISTRIBUTED AS A SERVICE TO CLIENTS ==HO/AFP/GettyImages