Following news of Crimea's independence referendum organized with the help of Russia on 16 March 2014, the Kurultai leadership voiced concerns of renewed persecution, as commented by a U.S. official before the visit of a UN human rights team to the peninsula. At the same time, Rustam Minnikhanov, the president of Tatarstan was dispatched to Crimea to quell Crimean Tatars' concerns and to state that "in the 23 years of Ukraine's independence the Ukrainian leaders have been using Crimean Tatars as pawns in their political games without doing them any tangible favors". The issue of Crimean Tatar persecution by Russia has since been raised regularly on an international level.