One person died, and several were injured during Ukrainian drone attacks overnight against an oil refinery in southern Russia and also the Crimea, Russian authorities said on Friday.

Two people were injured in the refinery attack in the Krasnodar region, the state news agency TASS reported, citing the regional crisis response centre.

It said the fire had since been extinguished.

Another drone attack in the region caused damage to the bus station in the town of Yuzhny and an industrial plant in the city of Krasnodar on Friday morning.

One boiler house worker was killed, and at least four people were injured by falling drone debris, according to the report.

A total of 114 Ukrainian drones were shot down in the combined attacks, 70 of them over the Crimea and the Sea of Azov alone.

The ministry of defence in Moscow said.

Several Ukrainian remote-controlled boats with explosives were also reportedly destroyed.

The information could not be independently verified. Previously, the Russian side omitted to confirm actual damage in attacks it claimed to have repelled.

On this occasion, drones targeting the Crimean port city of Sevastopol were successfully downed, according to the Russian-appointed governor, Mikhail Rasvozhayev.

A drone was also reportedly shot down over Russia’s southern Volgograd region, which is far away from Ukraine.

For its part, Russia targeted Ukraine with four cruise missiles overnight, but all of them were intercepted, the Ukrainian Air Force said on Friday.

Russia has launched a full-scale invasion of Ukraine more than two years ago. Kyiv has since received extensive military aid from Western allies to maintain its defensive campaign.

In an attempt to disrupt Russian military supplies, Ukraine also began to attack targets on Russian territory, especially oil refineries and transport infrastructure.

With Western help, the country has also significantly expanded its own drone production.

(dpa/NAN)