At least 13 killed in Ukrainian strike on Russia's Tatarstan region, officials say BBCUkrainian drone strike kills 13 inside Russia, authorities say, in deadliest attack in two years CNNUkrainian Drone Attack Kills at Least 13 People in Russia Democracy Now!Ukraine confirms strikes on oil refinery in Russia’s Tatarstan – Europe live The GuardianUkrainian drone attack on a Russian city kills 13, with a refinery reportedly hit NBC News