Editor's note: This is a developing story and is being updated.

Ukrainian forces launched a large-scale attack against Russian military and oil facilities, striking assets in Russia and in occupied territories, including Crimea, Ukraine's General Staff reported on Dec. 14.

The Afipsky Oil Refinery in Russia's Krasnodar Krai, the Uryupinsk oil depot in Vologograd Oblast, and two fuel depots in Crimea were struck, the military reported.

The statement follows reports of explosions at an oil depot near Simferopol, a chemical plant in the Russian city of Veliky Novgorod, and several energy sites.

The series of attacks aims to "reduce Russia's offensive potential and disrupt the logistical support of Russian occupation forces," the General Staff said on Telegram.

According to Ukraine's military, explosions and a large-scale fire were reported at the Uryupinsk depot and the Afipsky Oil Refinery. The full extent of damage is being determined.

Pro-Ukrainian Telegram channel Crimean Wind previously reported that the Uryupinsk depot and a power station in Smolensk were reportedly hit by drones.

Russian authorities reported 41 drones over the territory of occupied Crimea amid the reported explosions at an oil depot near Simferopol, Crimean Wind reported. Russia's Defense Ministry claimed its forces had downed 141 Ukrainian drones across multiple regions overnight.

The Akron Chemical Plant in the Russian city of Veliky Novgorod was hit in the drone attack, with smoke seen rising from the site, Telegram channel Exilenova+ reported.

The Ukrainian military also said it had struck two electronic warfare stations, two command posts, a radar in the occupied part of Donetsk Oblast, a Tor-M2 air defense system and a drone facility in the occupied part of Zaporizhzhia Oblast, and two radars in Crimea.

Ukraine regularly strikes Russian military and energy infrastructure in an effort to diminish Moscow's fighting power as it continues to wage its war against Ukraine.

Russian energy directly funds the Kremlin's war, and energy infrastructure sites are considered military targets by Kyiv.

Reuters reported on Dec. 9 that Russia's Syzran oil refinery halted operations on Dec. 5 after sustaining damage in a Ukrainian drone attack.

Ukraine confirmed the strike, saying it carried out the operation to "reduce the military and economic potential of the Russian aggressor."

Meanwhile, the Slavneft-Yanos oil refinery in Yaroslavl, one of Russia's five largest, was struck in a drone attack overnight on Dec. 12, Ukraine's General Staff confirmed later the same day.

"This is one of the largest refineries of the occupiers, which is capable of processing from 15 million tons of oil and oil condensate per year. It is involved in providing the armed forces of the Russian invaders," the General Staff said in a Telegram post.