17 people have been killed by a powerful car bomb attack in the central market of the southern Russian city of Vladikavkaz. Over 100 others were injured in an attack investigators are treating as terrorism. Police say another bomb has been found at the gates of the market, and the area has been evacuated. The emergencies ministry is sending a plane with aid and medical help for the injured. The President of the republic is currently at the site to assess the damage.