Thirteen people were killed and more than ten others wounded following armed group Alshabaab militants attack on Somali criminal investigations headquarters in the capital Mogadishu on Sunday.
Interior ministry has confirmed that five of those killed are civilians who were near the scene during the car bomb attack.
Seven attackers and one soldier also killed according to the Minister of Interior Abdirizack Mohamed.
Armed group Alshabaab which is fighting federal government of Somalia has claimed the responsibility.
It is the second attack by the group against Somali security agencies in less than two weeks.
Somali National Army and African Union troops are gearing up to secure upcoming historic elections from Alshabaab disruptions.