Russian troops have taken the village of Pobieda in Ukraine's Donetsk region, the Russian defence ministry has said, but the Ukrainian military said its forces are repelling dozens of attacks in the area.
Pobieda is a village south of Maryinka, a town that has been all but levelled by months of clashes.
Russia's defence ministry said it had taken Pobieda and improved its position in several other areas of the Donetsk region.
The General Staff of Ukraine's Armed Forces, in its evening report on Facebook, said its troops "continue to contain the enemy" around Pobieda and a nearby village, Novomykhailivka.
"The enemy, with the support of aviation, attempted to breach our troops' defences 31 times," the report said.
A widely read Ukrainian military blog, DeepState, reported that Russian forces had occupied Pobieda and were advancing on two other villages.
Reuters could not independently verify battlefield reports from either side.
It comes as President Volodymyr Zelensky downplayed Ukraine's loss in Avdiivka to Russian forces and called for faster support from allies as the war against Russia nears the two-year mark.
Russia's President Vladimir Putin said his country will press on with its drive through eastern Ukraine.
Mr Zelensky, in excerpts from an interview with Fox News to be aired today, acknowledged that last year had been "complicated" for Ukraine, particularly as 2023 came to a close.
But he pointed to earlier gains, particularly in the northeastern Kharkiv region, where the interview took place.
"During these two years we got (back) part of the Kharkiv region. Now we are in this region ... and we unblocked the Black Sea. There are grain routes and we destroyed a lot of their ships of the Russian fleet," President Zelensky said.
"That is what we did over two years. And what they could do? Only this one place. But what for?"
Avdiivka lies 15km northwest of the Russian-held main town of the Donetsk region, also named Donetsk.
Russian analysts say its capture will keep Donetsk safe from Ukrainian shelling as Moscow considers how to pursue its drive to capture all of the Donetsk and Luhansk regions.
In his comments, Mr Zelensky expressed new discontent with the slowdown in Western aid for Ukraine's war effort, without singling out the United States.
Ukraine war: what comes now after fall of Avdiivka?
US President Joe Biden's request to extend a big aid package has been held up by wrangling in Congress.
"We have to be more quick. That means to lose all the bureaucracy. Otherwise we will not have any chance," he said.
The president acknowledged that finding an alternative to US support would not be easy.
"Of course, we will find. We will not stay in the same place. We have to survive. We have to find some parallel steps," he said in the interview, conducted in part on a hospital ward.
"You understand that this help is crucial. So without it, sorry, we will have more and more such heroic guys who will be in the hospitals. If you don't have a real defending shield and similar powerful artillery with rounds, of course you will lose people."
The US Senate has passed a $95 billion aid package that includes funds for Ukraine, but House of Representatives Speaker Mike Johnson has declined to bring it up for a vote there.
