The former Afghan president Burhanuddin Rabbani was killed in a suicide bomb attack on his home close to the American embassy in Kabul on Tuesday. Four other members of Afghanistans High Peace Council, which Professor Rabbani was head of, were also killed in the explosion. One senior analyst, Taliban expert and former deputy European Union special representative to Afghanistan Michael Semple, described the attack as one of the biggest blows the peace process in Afghanistan has faced". Ministry of Interior sources told The Daily Telegraph the attack had been carried out by two suicide bombers at Professor Rabbanis home in Kabuls upmarket Wazir Akhbar Khan neighbourhood. A loud explosion was heard in the area. Government sources said they believed it was carried out by two "fighters" from an unknown group", but no group has yet claimed responsibility for the attack. Professor Rabbani was a former Mujahideen leader hailed as a hero who had played a key role in ending the Soviet occupation of Afghanistan in the 1980s and early 1990s. His Jamiat-e-Islami were the first Mujahideen fighters to enter Kabul after the Soviet withdrawal in 1992.