Head of the Center for Countering Disinformation of the National Security and Defense Council of Ukraine (NSDC) Andriy Kovalenko reported that the Russians have intensified drops with toxic substances, in particular in Kupiansk direction.

"In fact, Russia is using prohibited chemical substances, violating all possible rules of warfare. Ordinary terrorists, as they always have been," Kovalenko wrote on the Telegram channel on Monday.

As reported, during the period of the large-scale armed aggression of the Russian Federation against Ukraine, the enemy, along with conventional means of fire, has been using special ammunition equipped with dangerous chemical substances