Ukraine drone strikes ignite southern Russian refinery as Putin warns of tough period

Ukrainian drones sparked a blaze at a major southern Russian oil refinery in Slavyansk-na-Kubani, as Kyiv said long-range attacks are choking Moscow’s fuel supplies and Putin acknowledged Russia is in a 'difficult period.' Reports also cited a possible second refinery hit near Yaroslavl and casualties from debris, part of a broader campaign affecting energyexports and transport.