Several people were feared killed in suicide bombing attack by extremist group Al-Shabaab targeting a United Nations convoy outside the airport in the Somali capital Mogadishu, dpa cited security officials as saying Wednesday. A member of the group drove a car bomb into the peacekeeper convoy at about 0700 GMT at the heavily secured Aden Ade International Airport, Somali security officials said. Al-Shabaab claimed responsibility for the attack.