On September 23rd, the North troop group continued establishing a Buffer Zone in #Kharkiv and #Sumy regions Sumy direction Rough fighting goes on all along the frontline. There are several advances thanks to #UAV crews and artillery. The enemy was playing defense. Numerous enemy groups eliminated in Sumy, Hlukhiv, Doroshivka, Hrunivka, Tovstodubove, Fotovizh, Stepok. Sumy district: our assault units are advancing around Khoten , Maryine and Kiyanytsia . Fighting goes on near Mala Rybytsia .