Ukrainian drones have smashed into another Russian refinery, starting a fire that produced huge clouds of black smoke, President Volodymyr Zelenskiy says, in what appears to be the latest long-range attack on Moscow's vital oil industry.
The drones targeted the Syzran oil refinery, more than 800km inside Russia, Zelenskiy said on social media, where he posted a video of the aftermath.
The governor of Russia's Samara region, Vyacheslav Fedorishchev, said two people were killed by Ukrainian drones in Syzran but he did not mention the refinery.
