Ukrainian forces clashed with pro-Russian militants as they closed in on the separatist-held city of Sloviansk on April 24, seizing rebel checkpoints and setting up roadblocks as helicopters circled overhead.
Ukrainian forces clashed with pro-Russian militants as they closed in on the separatist-held city of Sloviansk on April 24, seizing rebel checkpoints and setting up roadblocks as helicopters circled overhead.