Ukrainian drone strikes 750 miles inside Russia kill at least 13, authorities say CBS NewsUkrainian Drone Attack Deep Into Russia Is Among Its Deadliest of the War The New York TimesUkrainian drone strike kills 13 inside Russia, authorities say, in deadliest attack in two years CNNUkrainian drone attack on a Russian city kills 13, with a refinery reportedly hit NBC NewsUkraine confirms strikes on oil refinery in Russia’s Tatarstan – as it happened The Guardian