At least 10 people have been killed and dozens more injured as a car bomb hit a market in the Somali capital Mogadishu.

According to local police, the explosion went off at exactly midday. The market is near a former Somali air force academy.  It's one of the busiest and most crowded markets in downtown Mogadishu.

There's been no claim of responsibility yet. Security has been increased in the capital ahead of presidential polls, which are set for Wednesday.