At least 30 people have been killed after gunmen attacked an African Union military base in southern Somalia, witnesses say.
A suicide car bomber drove into the main gates of the base in Leego, along the main road connecting the capital, Mogadishu and the city of Baidoa.
The militant Islamist group al-Shabab says its fighters have taken control of the base but this is not confirmed.
Al-Shabab is battling Somalia's government for control of the country.
The base is manned by Burundian soldiers from the African Union Mission in Somalia (Amisom), which has more than 20,000 troops in the country.