The mayor of Kyiv, former professional boxer Vitali Klitschko, hit back on Sunday at criticism by Ukraine's president over measures to help residents withstand power cuts, describing disputes as "senseless" amid Russia's military campaign.

Klitschko said 430 "warming centers" were helping residents cope with the effects of Russian attacks on power stations and more than 100 more were planned in case of extreme conditions. President Volodymyr Zelenskyy noted last week there were a lot of complaints about measures adopted in the capital.

"I do not want to become involved in political battles, particularly in the current situation," Klitschko said in a video posted on Telegram.

"That is senseless. I have things to do in the city."

Klitschko, who had been mired in several disputes with Zelenskyy before the invasion, said the president's allies had engaged in "manipulation" about the city's efforts, including "incomprehensible photos" posted online.

"To put it mildly, this is not nice — not for Ukrainians or for our foreign partners," Klitschko said. "Today, like never before, everyone must unite and work together. And here we have some sort of political games."

Zelenskyy in the past week has promoted the efforts of thousands of "invincibility centers" set up throughout Ukraine to provide heat, water, internet and mobile phone links.

In his nightly video address on Friday, Zelenskyy said the Kyiv mayor had not done enough to help beleaguered residents.

"To put it mildly, more work is needed," Zelenskyy said.

Zelenskyy was elected by a landslide in 2019, five years after Klitschko first took office. Before the war, the two leaders had clashed over the way the capital and its services were being run.