• Russian forces have overrun the villages of Vovche and Prohres in Ukraine's Donetsk region, according to Ukraine's military.
• The Ukrainian Security Service targeted substations in Russia’s Kursk region, causing power outages, after Russia claimed to intercept a drone attack.
• The villages are about 20 miles northwest of Avdiivka, which Russia captured in February.

Russian forces have overrun two front-line villages in Ukraine’s eastern Donetsk region, a Ukrainian army sergeant said Monday, after relentless assaults that are part of a Kremlin summer push to overwhelm battlefield defenses there.

Separately, attacks in Russia's Kursk region by the Security Service of Ukraine, also known as the SBU, struck a number of substations causing power outages, according to a statement from the General Staff of Ukraine. The claim of responsibility came after Russia said it thwarted a nighttime Ukrainian drone attack.

"They pressed non-stop" to capture Vovche and Prohres, the chief sergeant of Ukraine’s 47th Separate Mechanized Brigade, Oleh Chaus, told Radio Svaboda. "They sent in a large number of troops, which had not previously been used."

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Russia’s Defense Ministry claimed in recent days that it had taken control of the villages, but the Ukrainian General Staff made no official comment.

In this photo taken from video released by the Russian Defense Ministry on July 10, 2024, Russian tank T-80 fires toward Avdiivka from an undisclosed location. (Russian Defense Ministry Press Service photo via AP, File)

The villages lie about 20 miles northwest of Avdiivka, a Donetsk city that the Russian army seized in February after a long battle. That victory was the Kremlin's last major triumph in the war that is now in its third year.

Russia’s onslaught, fueled by its heavy advantage in soldiers and weaponry, has repeatedly forced the Ukrainians to pull back from defensive positions to avoid being captured or killed.

Oleksandr Shyrshyn, the 47th brigade's deputy battalion commander, confirmed to local media that the villages had been taken. He blamed poor training of troops, low abilities of officers, motivation and inadequate weapons for the setbacks.

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Ukrainian President Volodymyr Zelenskyy late Sunday described the situation in the Donetsk region as "extremely challenging."

Russia’s strategy of attritional warfare, with powerful glide bombs smashing Ukrainian defenses before infantry move in, has brought incremental gains for the Kremlin as it seeks another big breakthrough.

A soldier of Ukraine's National Guard 15th Brigade launches a reconnaissance drone, Leleka, to determine Russian positions near the front line in Zaporizhzhia region, Ukraine, on July 29, 2024. (AP Photo/Andriy Andriyenko)

Ukraine is significantly outgunned by Russia’s bigger army on the roughly 600-mile front line.

Russian troops are also intensifying their weekslong drive to breach Ukrainian defenses around Pokrovsk, a town of around 60,000 people before the war, the Ukrainian General Staff said Monday.

Russia launched 52 attacks there over the previous 24 hours — almost twice the daily number in recent weeks, it said.

Meanwhile, Russian air defenses thwarted a nighttime barrage of 39 Ukrainian drones over five of the country’s regions, Russian authorities said Monday. Ukraine claimed its forces carried out strikes in the Kursk region.

Russia’s air defense were active and explosions were reported near at least four substations, the statement from Ukraine's General Staff said. After the attack, power outages were reported in the Ponyrovsky, Solntsevsky and Kursky districtions of Kursk region, according to the statement.

A soldier of Ukraine's National Guard 15th Brigade works with a reconnaissance drone, Leleka, on a wheat field to determine Russian positions near the front line in Zaporizhzhia region, Ukraine, on July 29, 2024. (AP Photo/Andriy Andriyenko)

The attacks were carried out by the Security Service of Ukraine’s Special Operations Center, as well as other components of the Defense Forces.

"These facilities, among other things, ensure the functioning of the Russian railway, which transports weapons and military equipment to support its occupation army," the statement said.

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Russia’s Defense Ministry said the drones were "intercepted and destroyed" in regions bordering Ukraine as well as in the Leningrad region roughly 430 miles north of the Ukrainian border. A power plant, a bridge and a power line were damaged by drone debris, it said.

Ukraine has employed high technology in its campaign of increasingly ambitious drone strikes deep inside Russia that target critical infrastructure in an attempt to make the war more costly for Moscow and hinder its war machine.