Russia's version of events in the Crimean Peninsula and the Donbas region of Ukraine is "not credible," according to European Union President Donald Tusk.
Tusk spoke with Ukrainian President Petro Poroshenko on August 17 after a resurgence in tensions over Crimea. Russian President Vladimir Putin last week threatened a “very serious” response when he accused Ukrainian agents of killing two Russian servicemen in Crimea, triggering the worst diplomatic standoff between the countries since the 2015 Minsk truce deal eased hostilities in the separatist conflict in eastern Ukraine.