Ukraine has launched its second major drone attack in a week against Russian oil refineries hundreds of miles from its borders.

Ukrainian drones hit an oil refinery 250 miles east of Moscow in a huge wave of attacks on Russian power plants, say military sources. A large fire exploded at the refinery in Kstovo city in the Nizhny Novgorod region following the attack, the Ukrainian military said, adding it was assessing the scale of damage there.

Ukraine carried out a drone strike on targets in Russia's Tver region, according to Kyiv intelligence sources.

Ukraine hits second major Russian oil refinery in a week after Zelensky hails Kyiv’s growing long-range drone capabilities as ‘bringing the war back to Russia’

Ukraine has carried out a significant drone attack, claiming to have struck a Russian oil refinery as part of its strategy to weaken Moscow’s energy infrastructure. The strike is seen as an attempt to disrupt fuel supplies critical to Russia’s military operations.

A nuclear power plant was among the targets of a massive Ukrainian drone attack against Russian oil and power facilities, Russian officials and media outlets reported on Wednesday.