Ukraine launched its largest drone attack on Moscow since the start of the war, targeting a major oil refinery that supplies nearly one-third of the Russian capital's fuel needs. Massive explosions and towering plumes of black smoke were seen rising over southern Moscow as fires engulfed the strategic facility. The attack also disrupted air travel, forcing Moscow airports to suspend operations and triggering widespread flight cancellations. Kyiv described the strike as retaliation for recent Russian attacks, while reports suggest Russia may now look to import fuel from Asia amid growing supply concerns.