Ukraine’s navy said on Thursday that it had destroyed six Russian Su-34M military aircraft in an overnight strike on the Borisoglebsk airfield in Russia’s Voronezh region, as attacks on energy infrastructure and shipping continued on both sides, news agency Reuters reported.The navy said it used its Neptune coastal missile system in the attack, according to a statement posted on Telegram.Earlier in the day, a Ukrainian drone attack on Russia’s Ryazan region triggered a fire at an oil refinery, regional governor Pavel Malkov said. The damage caused by the attack was being assessed and emergency services were working at the site, Malkov said.“The material damage is now being assessed. Emergency services are working at the scene,” he said in a post on Telegram. A warehouse elsewhere in the region was also damaged, he added, without providing further details.The Ryazan refinery, owned by Russian oil major Rosneft, supplies fuel to Moscow and accounts for almost 5% of Russia’s total oil-refining capacity. The facility has been targeted in several drone attacks in recent months.Malkov said earlier that classes at schools and kindergartens in two districts had been cancelled because of mass drone attacks.The strike was the first reported Ukrainian attack on a Russian energy facility since US President Donald Trump announced on Sunday that Russia and Ukraine had agreed to an energy ceasefire. Neither side confirmed the truce.
