[1/6] A damaged building is seen, amid Russia's attack on Ukraine, in Avdiivka, Donetsk region, Ukraine, March 28, 2023, in this still image obtained from a social media video.
But the military said Ukrainian fighters continued to successfully repel Russian forces and claimed that Russia was suffering high combat deaths in the offensive.
Britain's defence ministry said Russian forces had made only "marginal progress" in an attempt to encircle Avdiivka in recent days and had lost many armoured vehicles and tanks.
Denis Pushilin, the Russian-installed leader of the part of Donetsk region under Moscow's control, said most Ukrainian forces had pulled back from a metals factory in western Bakhmut.
"In principle, we cannot speak of them (Russian forces) having achieved any strategic advances in the last few hours or even days," Ukrainian spokesman Cherevatiy said.