epa04178495 A pro-Russian protestors rebuild a checkpoint after it was left by Ukrainian security forces, near Slaviansk, Ukraine, 24 April 2014. At least five people were killed on 24 April in clashes between government forces and pro-Russian separatists in eastern Ukraine, prompting a warning by Russian President Vladimir Putin to the country’s Western-backed interim leader. The Ukrainian Interior Ministry said that up to five pro-Russian militants were killed as troops disbanded three checkpoints near the eastern town of Sloviansk. EPA/ROMAN PILIPEY