"We have not seen any proposals or clear signals on this yet. We need to talk about it, but on clear legal basis, of course, [they can be exchanged]," the minister said. Savchenko, charged with complicity in the murder of two Russian journalists covering eastern Ukraine conflict with the separatists, is awaiting trial in Russia’s Rostov-on-Don. She denies the charges saying she had been kidnapped in eastern Ukraine and illegally transported to Russia. Film director Oleg Sentsov was sentenced to 20 years in a Russian prison on terrorism charges. He was arrested at home in Ukraine’s Crimean peninsula, annexed by Russia, in May 2014. He pleaded not guilty, saying he’s been persecuted for pro-Ukrainian views. He said he had been tortured by Russian security services. Ukraine and the international community see their detention as political and have repeatedly demanded their release.