Sanctions put on Somali warlords
The warlords have withdrawn to Jowhar
East African countries have agreed to impose sanctions including a travel ban on a group of Somali warlords recently defeated in a battle for Mogadishu.
Kenya's Foreign Minister Raphael Tuju said the sanctions, which also mean an assets freeze, would apply immediately.
He said that the warlords, defeated by an Islamist militia, were still a security threat.
The ministers also reportedly said the warlords should be prosecuted for crimes against humanity.
They said they would draw up a list of "all those involved in illegal use of arms to terrorise and harm innocent civilians" in Somalia to forward to the International Criminal Court, reports the AP news agency.
The warlords will also be banned from sending their children to members of the regional body, Igad.
Mr Tuju described the Islamist takeover as a "popular uprising".
The warlords had controlled Mogadishu since 1991.
Most have now fled to Jowhar, 90km from the capital, where a stand-off is continuing between their forces and the Union of Islamic Courts militia.
The Igad ministers said they wanted to support the fragile interim government based in Baidoa, 250km from Mogadishu.
Prime Minister Ali Mohammed Ghedi attended the meeting but President Abdullahi Yusuf could not attend the Nairobi meeting because of ill-health.
The talks had originally been scheduled for Baidoa but were moved because of clashes there last week.
"It is obvious that the dislodged warlords still pose a threat to the security of Mogadishu and the country at large," Mr Tuju said.
"In this regard, it is important for Igad member states to support the transitional federal government to assume full control of the capital of Mogadishu and the country as a whole."
Facts and figures about life in Somalia
The interim government is based in Baidoa because Mogadishu is too dangerous.
Kenya's Daily Nation newspaper also suggests that Kenya might ban flights taking the drug khat to Somalia, where it is widely consumed by gunmen.
Kenya has already banned the warlords from its territory and last week deported one of them.
Igad was also expected to discuss relations with the United States widely believed to have backed the warlords, who claim their Islamist rivals are sheltering al-Qaeda fighters in Somalia.
The US says it will form a Somalia Contact Group in New York on Thursday to discuss the situation there.
President Yusuf and some Kenya-based diplomats have criticised the US for supporting the warlords.
The US has neither confirmed nor denied the reports but says it will stop Somalia becoming a safe haven for terrorists.
The transitional government only controls a small part of Somalia, which has not had a functioning national authority for 15 years. http://news.bbc.co.uk/2/hi/africa/5074758.stm