A railway bridge over the Kerch Strait connecting Russia and Crimea, the longest in Europe, is inaugurated.
The United States imposes sanctions on twelve Russian owned companies, a Russian arms exporter, and a bank. The U.S. cites multiple reasons, including Russian meddling in the 2016 elections and military engagements in Ukraine, Crimea, and Syria, among others.
The Security Service of Ukraine bans Yuliya Samoylova, Russia's entrant in this year's Eurovision Song Contest, from entering the country. This follows allegations that she had toured in Crimea following its annexation by Russia.
A Federal Security Service court in Russia sentences Ukrainian film director Oleg Sentsov to 20 years in prison for plotting terrorist acts in Crimea, amid allegations of torture and U.S. claims that he is being held hostage in Russia after having been abducted from Ukraine by Russian-backed separatists.