Ukrainian HIMARS rockets reportedly struck a thermal power plant near the Russian city of Belgorod on Sept. 28, Russian Telegram media channels reported.
Power outages were reported across Belgorod Oblast following the attack that struck one of the substations, Russian media reported.
Belgorod Oblast Governor Vyacheslav Gladkov confirmed a strike on critical infrastructure as well as "significant power outages."
No information on the extent of the damage was available.
High Mobility Artillery Rocket Systems (HIMARS), with a range of around 70 kilometers, allow Ukraine to target Russian forces on the other side of the front line far more accurately than they had previously.
President Volodymyr Zelensky confirmed on Sept. 17 that Ukraine will receive Patriot HIMARS missiles as part of a U.S. weapons aid package financed by NATO allies.