On May 5, the 400,000 barrels-per-day Kirishi refinery owned by Surgutneftegas was hit by drone attacks, causing fires. NASA satellite imagery detected heating anomalies indicating fires at the refinery and nearby areas. On May 22, Ukraine targeted the Yaroslavl oil refinery and President Zelensky announced the use of long-range drones against Russian oil refining assets. On May 24, Russia launched a massive attack on Kiev using hypersonic ballistic missiles, resulting in at least one death and 20 injuries.
