A key Russian military-industrial plant in Cheboksary, the capital of Russia’s Chuvash Republic, that had been reinforced with anti-drone defenses, was struck by a Ukrainian long-range missile overnight on Monday-Tuesday, May 4-5.
According to Defense Express, the facility, operated by VNIIR-Progress, had previously installed metal protective structures on its buildings – commonly used to mitigate drone strikes – but these measures didn’t prevent the latest attack.
The plant produces electronic components used in Russian weapons systems, including satellite navigation equipment, making it a high-value target.
According to Defense Express, the strike may have involved a Ukrainian cruise missile, potentially the FP-5 “Flamingo,” though this has not been officially confirmed.
The attack, more than 900 kilometers (560 miles) from Ukraine’s border, underscores Kyiv’s growing ability to target military infrastructure deep inside Russian territory.
The full extent of the damage remains unclear and has not been independently verified.
The Flamingo is a Ukrainian long-range cruise missile developed by the defense company Fire Point and first publicly revealed in 2025. It has a reported range of up to 3,000 kilometers (about 1,860 miles) and carries a warhead weighing around 1,100-1,150 kilograms (about 2,400–2,530 pounds), significantly larger than many Western equivalents.
The missile is designed to strike high-value targets deep inside Russian territory, including military-industrial facilities and energy infrastructure. It can fly at speeds of up to roughly 900 km/h (about 560 mph) using satellite navigation with backup guidance systems.
Its combat use has been relatively limited but notable. Ukrainian forces have previously used FP-5 missiles in strikes on Russian military and industrial sites, including a major attack on an explosives plant in the Samara region on March 28 – the most recent widely reported use prior to the latest strike.