Ukraine has hit a Russian chemical plant with Storm Shadow missiles, its military said on Tuesday, referring to the UK-made long-range weapon.

Calling the strike a successful hit that penetrated the Russian air defense system, Ukraine's general staff of the armed forces said they were still assessing the outcome of the massive strike.

The Kremlin has warned the West not to give Ukraine weapons capable of long-range attacks, but Kyiv insists it's imperative to target Russian facilities that play a key role in Moscow's activities against Ukraine.

The Bryansk Chemical Plant is a key facility of the aggressor state's military-industrial complex, the Ukrainian military stated in an X post on Tuesday.

It added that the plant produces gunpowder, explosives and rocket fuel components used in ammunition and missiles employed by the enemy to shell the territory of Ukraine.

Moscow's authorities have not yet commented on the strike.

The attack coincided with statements from UK Prime Minister Sir Keir Starmer and European leaders, who vowed to intensify pressure on Russia’s economy and defense industry until Russian President Vladimir Putin is willing to negotiate peace.

Meanwhile, reports indicate that Russia launched an air attack on Ukraine's capital, Kyiv, early Wednesday.

These developments come on the heels of recent discussions in the U.S. aimed at potentially augmenting Ukraine’s defense capabilities.

Russia has been engaged in conflict with Ukraine since its full-scale invasion in February 2022, controlling approximately 20% of Ukrainian territory, including the Crimean Peninsula.