From RFE/RL's News Desk:
Four Ukrainian soldiers were reported killed in or near separatist-controlled areas of eastern Ukraine.
Two soldiers died after being ambushed by separatists near the city of Luhansk, the Ukrainian military said.
In a separate incident, two Ukrainian soldiers were killed and two wounded in an explosion near Svitlodarsk in the nearby Donetsk region.
Here is today's map of the security situation in eastern Ukraine, according to the National Security and Defense Council (click to enlarge):