Russia’s Foreign Ministry on Sunday rejected a British claim that Russia was seeking to replace Ukraine’s government with a pro-Moscow administration, and that former Ukrainian lawmaker Yevheniy Murayev was being considered as a potential candidate. Britain’s Foreign Office on Saturday also named several other Ukrainian politicians it said had links with Russian intelligence services, along with Murayev, who is the leader of a small party that has no seats in the parliament. The U.K. government made the claim based on an intelligence assessment, without providing evidence to back it up. It comes amid high tensions between Moscow and the West over Russia’s designs on Ukraine and each side’s increasing accusations that the other is planning provocations. Amid diplomatic efforts to defuse the crisis, U.K. Defense Secretary Ben Wallace is expected to meet Russian Defense Minister Sergei Shoigu for talks in Moscow. No timing has been given for the meeting, which would be the first U.K.-Russia bilateral defense talks since 2013.