Elevan people have been killed and 10 others injured after a car bomb exploded at a shopping mall in Somalia's capital.

Police said they believe the attack was probably carried out by Islamist group al Shabaab.

The blast happened in Mogadishu's Hamarweyne district, a busy area with shops and restaurants.

"Several dead people were removed from a wrecked building at the blast scene. So far death toll is 11 civilians and  10 others injured," police officer Mohamed Hussein said.

Hussein had earlier put the death toll at two.

Al Shabaab frequently carries out bombings in Mogadishu and other parts of Somalia against government and other targets.

The group is trying to oust the Western-backed central government and establish its own rule based on its strict interpretation of sharia law.

Al Shabaab's militants also carry out attacks outside Somalia.

Its latest assault in neighbouring Kenya, a suicide andgun attack at an office and hotel complex in the capital Nairobi last month, killed 21 people.

Al Shabaab want Kenya to withdraw its troops from Somalia where they are stationed as part of an African peace keeping force which helps defend the central government.