Ukrainian drones damage Russian oil refineries in second day of attacks

A day after seriously damaging Lukoil's NORSI refinery in Nizhny Novgorod, Ukrainian drone attacks hit refineries in the Rostov and Ryazan regions, Russian officials said.

Ukraine struck Russian oil refineries in a second day of heavy drone attacks on Wednesday (Mar 13), causing a fire at Rosneft's biggest refinery in what President Vladimir Putin said was an attempt to disrupt his country's presidential election this week.

Russia and Ukraine have both used drones to strike critical infrastructure, military installations and troop concentrations in their more than two-year war, with Kyiv stepping up attacks on Russian refineries and energy facilities in recent months.

A day after seriously damaging Lukoil's NORSI refinery in Nizhny Novgorod, Ukrainian drone attacks hit refineries in the Rostov and Ryazan regions, Russian officials said.

In Rostov, there were no casualties but the Novoshakhtinsk refinery was forced to halt operations and damage was being assessed, regional governor Vasily Golubev said.

In Ryazan, a drone attack caused a fire at Rosneft's refinery, Russia's seventh largest, and there were initial reports of injuries, governor Pavel Malkov said. In a later update, he said it had been extinguished.

A Ukrainian source told Reuters the drone attacks were conducted by Ukraine's SBU security service. "We are systematically implementing a detailed, calculated strategy to reduce Russia's economic potential," the source said.

Ukrainian defence forces, the source added, also conducted overnight drone attacks on a Russian airbase in Buturlinovka and a military airfield in Voronezh region.