Mogadishu: A suicide bomber detonated an explosives-laden car outside the United Nations Mine Action Service offices in Mogadishu, killing 10 people, including seven UN guards, a Somali police official said on Tuesday.

Unlike previous attacks blamed on the al-Qaida-linked militant group al-Shabab, gunmen did not accompany the suicide bomber, Captain Mohamed Hussein said. He said that the suicide car bomber tried to speed through the barrier at the UN office but guards shot at the car. Hussein said a second suicide blast targeted a checkpoint manned by Somali security forces near the African Union base in Mogadishu. Casualties there remain unclear.