A suicide bomber detonated explosives outside the Mogadishu office of Somalian Prime Minister Abdi Farah Shirdon on Tuesday, his spokesman said.
The spokesman, Garad Salad, could not immediately say whether the explosion resulted in casualties.
But eyewitnesses said a security guard was killed while trying to fight off the bomber. The blast shattered windows of nearby buildings and left two others wounded, witnesses said.
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