of threats from the west. the question is is he right, where is the heavy ra-- leverag. cnn is live at the air bas where the warning shot was fired. please explain what happened and what the reaction has been on the ground. >> reporter: yes. that was earlier today at a base north of sevastopol. a group of ukrainian soldiers approached the men in green, the russians, to try to talk to them. however, the russian soldiers -- and this is footage that we obtained from a local crimean station. the russian soldiers, some of them fired in the air. fortunately, fired only in the air.