At least eight people were killed during a mortar bomb attack on , hospital officials said today.
The strike yesterday came hours after President Abdullahi Yusuf flew into the anarchic capital, Mogadishu, where insurgents have attacked government forces and their allies on an almost daily basis.
A total of 33 were injured by the attack on the hilltop Villa Somalia palace, and the ensuing retaliatory gunfire from government and Ethiopian troops.
Most blame the insurgency on remnants of a hardline Islamist movement defeated by the government with Ethiopian military backing in a two-week war that spanned the New Year.
It ended a six-month Islamist reign over most of southern Somalia. Though aimed at the government and its allies including African Union (AU) peacekeepers who arrived earlier this month, civilians are invariably caught up in the violence.
Mr Yusuf was elected in 2004 but could not set foot in Mogadishu until this year because he feared for his safety as an outsider. He came back to the coastal city again amid tight security yesterday.
The still-struggling interim government had on Monday voted to move to Mogadishu from its current seat in Baidoa, a relatively safer south-central trading outpost.
Mr Yusuf's administration is anxious to impose its authority on the country after being relegated until the December war to temporary bases in outlying towns - and for a time after its 2004 creation, in neighbouring Kenya. The AU has dispatched more than 1,000 peacekeepers from Uganda to Mogadishu and hopes to increase that to 8,000 troops, but so far only half the troops have been pledged and their deployment dates are unclear and as yet not fully funded.
The Horn of Africa country degenerated into anarchy soon after the ouster of former dictator Mohamed Siad Barre in 1991, and 13 earlier attempts at creating an effective central government have all failed.