Somalia last year established a formal central government in Mogadishu for the first time since the 1990s. Somali President Hassan Sheik Mohamud has boasted of the country's fundamental gains, but expressed concern about the ongoing threat from militant group al-Shabaab.
U.N. Deputy Secretary-General Jan Eliasson told the Security Council political progress could unravel in Somalia without enduring international support.
"Somalia will require sustained and generous international support to continue on the path of progress," he said in a statement Thursday. "This means a clear commitment to the federal government to rapidly develop its plans and build its capacities."
Delegates at a London donors conference for Somalia in May expressed similar concerns, saying Somalia has a long road to stability ahead.
Eliasson raised concerns about the central government's authority after delegates to a May conference declared a regional state in the coastal city of Kismayo.
"While there have so far been no reports of military confrontation, the situation remains volatile," Eliasson said.
The central government declared the state to be unconstitutional.