Ethiopia has said its troops will stay in Somalia for another few weeks to help the victorious government there after a two-week war to oust militant Islamists.
Ethiopian Prime Minister Meles Zenawi, whose intervention turned the war against the Islamists, said his forces would only remain "for a few weeks" while the interim government pacifies the situation.
"It is up to the international community to deploy a peacekeeping force in Somali without delay to avoid a vacuum and the resurgence of extremists and terrorists," he added.
Uganda has offered a battalion, while the Somali government says Nigeria may also give troops to an African peacekeeping mission already endorsed by the United Nations before the war.
Neighbouring Kenya said it had sealed its long and porous northeastern border against the defeated Somali Islamic Courts Council fighters fleeing south.
Ethiopian planes, tanks and troops helped the Somali government drive out the Islamists from Mogadishu last week. The administration broke out of its provincial outpost to end six months of Islamist rule across much of the south.
Despite the Islamists' surprisingly quick flight, analysts and diplomats say the conflict may be far from over.
The Islamists, joined by some foreign fighters, may launch an Iraqi-style insurgency against a government they see as propped up by a hated and Christian-led foreign power.