A Ukrainian drone attack last week forced a refinery in Ryazan, southeast of Moscow, to suspend operations. Russia's Defense Ministry said in a statement on Friday that 49 Ukrainian drones had been downed over the country overnight, including 25 in the southern Rostov region and eight in the Volgograd region.

Vladimir Putin’s forces are focusing on attacking on the outskirts of a key eastern Ukrainian city of Pokrovsk amid reports of heavy troop losses.Around half of Russian attacks across the 620-mile front have focused on the area around the city,

The US has sent to Ukraine, the missile defense systems which were earlier stationed in Israel. Scroll down for more.

Videos showed fireballs over a facility in Ryazan, 110 miles southeast of Moscow. Kyiv is seeking to disrupt Russian military logistics and put pressure on the country’s economy by striking its oil industry.

Russia's Defence Ministry claimed it had repelled a massive Ukrainian drone attack overnight. Read more at straitstimes.com.

Ukraine on Sunday said that it repeatedly struck an oil refinery in Russia’s Ryazan region, the second such attack claimed by Kyiv this week. A statement by Ukraine’s General Staff claimed that the country’s armed forces, together with Ukraine’s Defense Intelligence, repeatedly struck facilities of the Ryazan Oil Refining Company.

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The scale of the attack represents a significant escalation in the conflict, showcasing Ukraine's increasing reliance on drones.

The US has sent to Ukraine, the missile defense systems which were earlier stationed in Israel. Scroll down for more.

MOSCOW - An oil refinery in Russia's southern Volgograd region caught fire after an overnight Ukrainian drone attack, but the blaze has now been put out, the regional governor said on Friday. Read more at straitstimes.

In December, Ukrainian drones targeted oil depots and refineries in Smolensk, Oryol, Bryansk and Rostov — an area that had previously been targeted in July. The General Staff of Ukraine’s Armed Forces claimed that the July attack on the Rostov refinery destroyed 1.5 million tons of oil and oil products worth $540 million (£433m).