Ukraine struck a major industrial facility in the Russian city of Volgograd, Ukrainian President Volodymyr Zelenskyy said Saturday, while a Russian drone attack killed a man in Ukraine’s northeastern Sumy region overnight.

Ukraine has stepped up its long-range aerial attacks on Russian military industries and energy facilities, aiming to cut Moscow’s revenue for the war and make Russians feel the consequences of the invasion, now in its fifth year.

Writing on X, Zelenskyy said that FP-5 Flamingo missiles hit the Titan-Barrikady facility in Volgograd in southwestern Russia, describing it as a “major industrial complex” where Russia “produces artillery systems and specialized military equipment, including components for missile launch systems.”

According to Ukraine’s General Staff, the facility manufactures equipment for missile systems, including self-propelled launchers and transport-loading vehicles for the Iskander-M missile system, which it said is “the same system Russia regularly uses to strike Ukrainian cities.”

Volgograd regional governor Andrei Bocharov confirmed an attack on a business in the region’s Krasnooktyabrsky district, saying 10 people had been wounded and taken to hospital. He said production facilities at the site were damaged but did not identify the company.

The attack came a day after Ukraine launched what appeared to be one of Kyiv’s biggest drone assaults since the Kremlin’s full-scale invasion more than four years ago. The major nighttime attack targeted a dozen Russian regions, Russian-held Crimea and the surrounding seas, Moscow’s Defense Ministry said Friday, noting that Russian air defenses intercepted 660 Ukrainian drones.

Zelenskyy said Thursday he had ordered “a 40-day influence operation,” believed to mean an escalation of attacks, aimed at “compelling (Russia) to end the war” after U.S. peace efforts over the past year yielded no breakthrough.

Meanwhile, in Ukraine’s Sumy region, a 66-year-old man was killed overnight in a Russian drone strike on a private residence in the region, regional head Oleh Hryhorov said Saturday.