Thousands of Crimean Tatars on Saturday, May 3 responded to news that their spiritual leader had been banned from the peninsula by blocking several highways in a tense standoff with riot police — the first sign that the Muslim ethnic group's discontent with Russian authorities may lead to turmoil.
The Moscow Times: Russia to prosecute Crimean Tatar protesters over unrest

Russian security forces blocking the way for Crimean Tatars crossing a checkpoint between Crimea and Kherson.