Zelenskyy confirmed on June 28 that Ukrainian drones struck Russian oil refineries in the Slavyansk and Yaroslavl regions overnight, describing the attacks as part of Kyiv's 'long-range sanctions' strategy. Multiple outlets including AP and Bloomberg corroborated the strikes; Russia's fuel reserves and refinery capacity remain key strategic targets in the ongoing conflict. The post omits broader context about the scale of Ukraine's refinery campaign — these strikes are part of a sustained, months-long drone offensive that has degraded Russian fuel production significantly.