Russia using 'crazy' tactics in Donbas says Zelenskyy

"Day after day, for months, they are driving people to their deaths there, concentrating the highest level of artillery strikes," he said.

Russian forces have repeatedly tried to seize Bakhmut, which sits on a main road leading to the Ukrainian-held cities of Sloviansk and Kramatorsk.

Zelenskyy advisor Oleksiy Arestovych said on Tuesday (October 25) that on one particular day, the Russians had attacked Bakhmut eight times before lunch and been pushed back every time.

Zelenskyy did not mention what was happening near the southern city of Kherson, which is held by pro-Moscow forces. Ukrainian troops say they expect a tough fight there.

"Generally, we are strengthening our positions all over the frontline, reducing the invaders' capabilities, destroying their logistics, and preparing good news for Ukraine," he said.