Not that the article is credible, but to add the latest news on it:

Kyiv dismisses Russia’s claim that Ukrainian forces bombed a college in occupied Luhansk

Ukraine’s General Staff has dismissed Russian claims that Ukrainian forces struck civilian infrastructure in Russian-occupied territories of Ukraine as “manipulative" ... The General Staff confirmed that on May 22, Ukrainian forces struck a number of Russian targets: an oil refinery, ammunition depots, air defense systems, and command posts, among them “one of the headquarters of the Rubikon unit” near Starobilsk ...