The Ukrainian military has reported heavy fighting in the central region of Zaporizhzhia on Tuesday.
The Zaporizhzhia Regional Military Administration said a five-hour battle took place in the Polohy district as Ukrainian forces tried to liberate the area.
After units of the region's territorial defense brigade occupied part of the district, Russian reinforcements forced them to withdraw, according to Col. Ivan Arefyev, spokesperson for the military administration.
Polohy is northeast of the Russian-occupied city of Melitopol, where Arefyev said Russian troops continued to "use terrorist methods to intimidate the local population and persuade them to their side."
Arefyev alleged the Russians were forcing businesses "to give part of their income in exchange for a work permit. Similar actions are taking place in the Berdiansk district of the region."
Berdiansk is on the coast, some 50 miles (about 80 kilometers) west of Mariupol.
Ukrainian authorities have accused the Russians of repeatedly blocking humanitarian convoys in the same region, at Vasylivka.
Russian forces in the south have made more significant territorial gains than elsewhere in Ukraine, holding Melitopol and Kherson despite Ukrainian counter-attacks in the area. From there, they have pushed northwards.