Dmytro Zhyvytskyi, head of the Sumy Regional Military Administration, said this on Telegram, Ukrinform reports.
He posted a video from a village in the Yunakivka community, which came under Grad fire.
"While shelling the Yunakivka community, the Russians used phosphorus bombs. Phosphorus munitions are forbidden during the war!" he said.
According to Zhyvytskyi, information on casualties and destruction is currently being clarified.
Let’s get started read our news at facebook messenger > > > Click here for subscribe