During the early morning of 5 May, the Russian army, following an artillery bombardment, tried to make a crossing of the river at Dronivka, but were stopped by Ukrainian troops and tanks. Two Ukrainian tanks of the 30th Mechanized Brigade engaged at least four or five Russian BMPs, two boats and two infantry squads at a distance of 1,200 metres (3,900 feet),[10] stopping the advance. After that, an artillery duel followed, during which the Russians lost ten vehicles, and the bridgehead.[citation needed]