Aerial footage released by the Ukraine's Azov Regiment on April 12, 2022 shows Russian tanks are destroyed by the regiment in streets of besieged Mariupol in southeastern. Ukraine. Over 10,000 civilians have been killed in the southeastern Ukrainian city of Mariupol, a number that could eventually double, the city�s mayor Vadym Boychenko said on Monday, as Russian forces close in on the key city ahead of a larger offensive in eastern Ukraine. Capturing Mariupol is likely a key priority for Russia. The city could form part of a land bridge connecting Russia�s mainland with the Russian-annexed Crimean Peninsula, and it lies within eastern Ukraine�s Donetsk region, which borders Russia and has been partially controlled by pro-Russian separatists since 2014.