MOGADISHU, Somalia -- A government official says a roadside bomb in the Somali capital of Mogadishu has killed 11 civilians and wounded many others.

Local district commissioner Ahmed Addow says the bomb exploded in Mogadishu's Medina neighborhood.

The Medina neighborhood is where the city's airport and the main base for the 9,000-strong African Union force are located. It is generally considered the safest area in the capital.

In recent weeks the AU has been pushing the Al Qaeda-linked al-Shabab insurgents out of the last district in the capital that al-Shabab controls. The AU supports the weak U.N.-backed government.

Kenyan soldiers have also entered Somalia from the south to fight al-Shabab.