The attack began Friday night with a suicide auto bomb at the entrance gate and continued with an assault by gunmen who stormed into the building, which is frequented by politicians, patrons and lawmakers.
Al Qaeda-linked Islamist terrorist group al Shabab, which is trying to topple Somalia's weak United Nations -backed government, immediately claimed responsibility for the attack.
Authorities confirmed that a local politician, two Americans, one British citizen, three Kenyans and three Tanzanians died in the attack.
"We believe. there were four gunmen involved in the attack and the death toll could be higher because we see (the) devastating consequences of the (bomb) blast and gunfire", he added. A suicide bomber rammed a vehicle loaded with explosives into a popular hotel before attackers forced their way inside.
It says she had recently returned to Somalia from Canada, where she attended school and worked as a journalist on TV programs in Toronto.
Workers stand at the sea port of the coastal town of Kismayu in southern Somalia November 12, 2013.
This auto bomb was detonated on Friday while local elders and local lawmakers were meeting together in order to discuss the regional elections that were approaching in Somalia.
The Al-Qaeda linked Al-Shabaab has claimed responsibility for the attack.
At least two journalists and a United Nations agency staff member were also reported to have been killed. After more than 14-hours of bloodshed, Somali troops shot down at least four assailants and captured another, Jubbaland's ministry of telecommunications confirmed.
She spent most of her life in Canada and developed her career as a journalist.
Canadian Minister of Immigration, Refugees and Citizenship Ahmed Hussen mourned Hodan Nalayeh's death on Twitter, saying she "highlighted the community's positive stories and contributions in Canada" through her work as a journalist. Naleyeh was the mother of two boys.
Somali women carry weapons during a demonstration organized by the extremist group al-Shabab in the Suqa Holaha neighborhood of Mogadishu on July 5, 2010.
Among the victims was Hodan Nalayeh, a prominent Somali-Canadian journalist and YouTube star.
Harun Maruf, a Voice of America journalist and author of Inside Al Shabaab, said on Twitter Ms Nalayah strived to write uplifting stories about Somalia and the Somali diaspora.