According to the Ukrainian military, fighting around the government-held town of Marinka began at 3 a.m. of 3 June when separatists launched an offensive with tanks and 1,000 fighters.[5] The DPR stated that this attack was in response to the heavy Ukrainian shelling of Donetsk, Horlivka, Staromykhailivka and Yenakiieve on the night of 2 June to the morning of 3 June.[12] They added that those shellings killed 15 people in DPR-held territory near Marinka.[5] The separatist attack began with artillery fire, followed by an infantry and tank assault as the sun came up.[1] The fighting lasted nearly 12 hours before stopping, but resumed again soon after.[5] The fighting had also spread to Krasnohorivka, and both towns were in flames as bloody and chaotic street battles took place.