Ukraine struck a critical Russian military-industrial site overnight on July 5 that produces components for high-precision weapons used by Moscow to attack Ukraine, the General Staff of Ukraine's Armed Forces reported.

The site in question is JSC VNIIR-Progress, a Russian state institute that specializes in developing electronic warfare (EW) systems, including the Kometa antenna arrays, used to jam satellite, radio, and radar signals.

The institute is located in Cheboksary, Chuvash Republic, about 1,200 kilometers (745 miles) away from the Ukrainian border.

The Kometa antenna is used in Shahed-type drones, Iskander-K cruise missiles, and guided aerial bomb modules — all high-precision weapons used by Russia to strike civilian and military targets across Ukraine.

The General Staff confirmed that Ukrainian weapons reached the target area but said final damage assessments were still underway.

The VNIIR-Progress institute has been sanctioned by both the United States and the European Union for its role in supporting Russia's war effort.

The Iskander-K is a precision-guided cruise missile with a range of up to 500 kilometers (311 miles), frequently used by Russia to target civilian areas. Shahed drones have become a central part of Moscow's airstrike tactics since late 2022 due to their low cost and high payload.

Located on the Volga River, Cheboksary is the capital of the Chuvash Republic and lies deep inside Russian territory. Russian independent media outlet Astra and local Telegram channels earlier reported explosions in the city overnight.

Russia's Defense Ministry claimed to have shot down two drones over the region.

This marks the second known Ukrainian drone strike on VNIIR-Progress. On June 9, explosions and fires were also reported at the facility following another drone attack.

Ukrainian strikes deep inside Russian territory between January and May have cost Russia over $10 billion, including $1.3 billion in direct damage to industrial facilities and infrastructure, Commander-in-Chief Oleksandr Syrskyi told journalists on June 21.

The indirect damage caused by the disruption of Russian industrial activities is estimated at $9.5 billion, putting the cost-to-result ratio of Ukrainian deep strikes at 1:15, Syrskyi said at a briefing attended by the Kyiv Independent.

Kyiv has ramped up drone attacks against Russian military and industrial sites far behind the border as part of its DeepStrike strategy, seeking to undermine Moscow's ability to wage war.

The attacks targeted Russia's oil refining sector, the fuel and lubricants facilities, energy and transport support, and strategic lines of communication.

"Remember that during negotiations, the Russian side listed a halt to strikes against the oil refining industry as one of the conditions. This shows that our strikes are truly effective," Syrskyi said.

Oil and gas exports are among Russia's key revenue sources and play a crucial role in sustaining its war effort.

"Of course, we will continue (attacking deep inside Russian territory). We will increase the scale and the depth," the commander added, stressing that the attacks target solely military facilities.

Ukraine has increased the production of long-range drones with the support of Western partners and developed new tactics in striking Russia behind the lines.

In one of the most audacious attacks, the Security Service of Ukraine (SBU) on June 1 struck dozens of Russian bombers and other aircraft across four different air bases in an operation dubbed Spiderweb. SBU drones were smuggled to Russia in trucks and then deployed to attack airfields thousands of kilometers from the Russia-Ukraine border.

Russia ‘afraid to admit’ scale of losses, trying to hide by dumping soldiers’ bodies on Ukraine, Zelensky says

Ukrainian authorities have confirmed that at least 20 of the bodies Russia returned as Ukrainian were actually Russian soldiers, President Volodymyr Zelensky said.

The Kyiv IndependentTim Zadorozhnyy