Russian missile attacks on the Ukrainian city of Zaporizhzhia killed at least six people, Ukrainian officials said, and President Volodymyr Zelenskyy claimed the strikes involved ballistic missiles supplied by North Korea. The number of wounded was reported as 20 by The Guardian and 19 by the BBC. The overnight attacks were part of a broader Russian offensive across Ukraine, Zelenskyy said, warning that Moscow was preparing to escalate by bringing in more North Korean military equipment. Russia and North Korea have been collaborating in the campaign against Ukraine since 2024, according to CBS World. In response, Ukraine's drone forces said they struck a military base in Voronezh, an oil refinery in Orsk, a cargo ship in the Black Sea, and energy facilities in Russian-occupied territories of Ukraine. The Ukrainian military confirmed the drone operation in a statement.