Andrey Marochko said Ukrainian troops have covered western routes in the area with anti-drone nets, with limited effect, according to TASS.
Russian forces attacked firefighters working to extinguish a fire caused by an earlier drone strike in Sloviansk, Donetsk region, Ukraine's state news agency reported.
Russian forces used a drone to attack a vehicle belonging to foreign journalists in the Donetsk region city of Sloviansk, Ukrainian media reported.
Ukraine's Security Service says it has detained an agent allegedly working for Russian military intelligence who was directing guided bombs and attack drones toward the Sloviansk sector in the Donetsk region.