A poll worker checks a voter's documents during the referendum on the joining of the Donetsk People's Republic to Russia, at the embassy of the Donetsk People's Republic (DPR) in Moscow, Russia. The people's republics of Donetsk and Luhansk (DPR, LPR), as well as the Russian-controlled parts of the Ukrainian regions of Zaporizhzhia and Kherson launch referendum procedures on joining Russia that will run through September 27.