The African Union mission in Somalia says an explosion at a government compound in the capital, Mogadishu, has killed at least three people.

The AMISOM spokesman said the blast Wednesday occurred near the home of the parliament speaker.

Details are still emerging about the method of attack.

Somalia has not had a stable central government since 1991. The U.N.-backed transitional government is currently fighting militant group al-Shabab, which controls parts of southern and central Somalia.

The country is also recovering from a severe drought and famine that displaced hundreds of thousands of Somalis.