Pro-Kiev officials in the separatist region of Donetsk said dozens of people were also wounded in shelling across the industrial province. The Ukrainian military said 23 soldiers were injured in the fighting, which has claimed at least 5,100 lives over the last nine months.
Seven civilians died overnight in rebel-held Donetsk and five more early today when a food distribution centre was hit, city hall officials said.
The Ukrainian military said that five soldiers and seven civilians were killed in other areas across the mostly Russian-speaking rustbelt.