Twin Alshabaab car bomb has killed more than 13 in Mogadishu
The car bomb was targeted at UN compound near Mogadishu International airport and check point manned by Somali soldiers.
Most of the death are UN private guards and AU troops but UN and AMISOM have denied the casualties.
Scores of others were wounded in the attack claimed by Alshabaab.
Alshabaab Spokesman Abu Musab said there fighters targeted foreign troops occupying Somali land.
US mission in Somalia and AMISOM have condemned the attack.
US said the attack will not deter their support to Somali and AU troops to defeat armed group Alshabaab.
