Press TV reports.
The incident took place in the northern Suqa Holaha district of Mogadishu, killing three high rank military officers.
This comes after Somalia’s new parliament was sworn in on Monday, for the first time after over 20 years as the war-torn country tries to end decades of conflict.
The swearing-in ceremony, held on the tarmac of the capital Mogadishu’s airport, was policed by African Union peacekeepers.
The transitional government is being replaced by 275-member lower house lawmakers and a yet-to-be-launched upper house with a maximum of 54 members selected through a United Nations-backed process.
Tight security measures were adopted across the capital ahead of the vote with police and military troops patrolling the streets.
The African nation has lacked an effective central government following the ouster of former President Mohamed Siad Barre in 1991.
At least three Somali officers have been killed and 12 others injured in an attack carried by armed men in the capital city Mogadishu,