Fighting has continued around the southern Somali town of Kismayo, leading hundreds to flee their homes.
At least five people were killed on Sunday and as many as nine died on Monday as rival factions used heavy weapons and anti-aircraft guns.
The fighting is between factions of the Juba Valley Alliance. Communications with the town are difficult.
Somalia has had no central government for 15 years and is under the control of various clan-based militias.
A transitional government has been named but it has split over whether to be based in the capital, Mogadishu, or elsewhere.
The fighting pits gunmen loyal to Col Barre Aadan Shire, who is also a reconstruction minister within the transitional government and backers of Col Abdi Igaal, one of the powerful militia commanders in the alliance.
They split 15 months ago over how the alliance should administer the region.