Ukraine has intensified its drone attacks on Russia, setting fire to a major oil refinery in the south and killing at least two people, according to Russian authorities.

A Ukrainian drone attack has killed one person and injured three in Russia’s Krasnodar region, according to local officials.

Ukrainian drones struck oil facilities in two southern Russian regions overnight into Saturday, local officials said, the latest in a near-daily campaign targeting infrastructure that funds Moscow’s invasion.

Ukrainian drones are flying deep into Russia to strike oil facilities.

Ukrainian forces have struck an oil terminal in the Russian Black Sea city of Tuapse, according to Ukraine’s General Staff.

Ukraine’s defense minister says the country's armed forces shot down more than 33,000 Russian drones of various types in March, a record monthly figure since Moscow launched its all-out invasion more than four years ago.

Ukrainian officials say a Russian drone attack on Odesa has killed two women and a toddler.

A Ukrainian drone attack hit a Russian Black Sea port as diplomats prepare for fresh U.S.-brokered peace talks.

Ukraine and Russia are at odds over competing ceasefire proposals.

A dolphin rescue center in Russia says 32 dolphins have died since fuel oil spilled out of two storm-stricken tankers three weeks ago in the Kerch Strait near the Russia-occupied Crimean Peninsula.

Russia-appointed officials in Moscow-occupied Crimea have announced a regional emergency after oil was detected on the coast of Sevastopol.