In a post on Telegram on Wednesday, President Zelensky wrote: “Overnight, Ukrainian FP-5 Flamingos hit a military plant in Cheboksary that supplies the occupier’s army with components for drones and missiles”.
He also published footage said to be showing a missile flying toward its target and plumes of smoke from a facility.
Ukraine’s military later said the VNIIR-Progress plant had been struck and there had been a fire at the site.
Chuvash Republic head Oleg Nikolaev confirmed that Cheboksary had been hit, reporting three injuries. He did not say whether the military plant was damaged.
The FP-5 Flamingo missile has a 1,150kg (2,535lbs) warhead and a reported range of 3,000km, putting Russia’s capital Moscow and other major cities well within its range.
Together with its Western allies, Ukraine has also been actively developing other types of missiles in order to maximise the costs of Russia’s invasion and force Moscow to seek a settlement.
Russian President Vladimir Putin has so far rejected all negotiation proposals.
The Kremlin leader also insisted that Russian troops were advancing everywhere on the vast front line – although evidence shows that the front has been virtually static in the past several months.