The Epitsentr chain of hypermarkets sells household and DIY goods.
Russia on Saturday bombed a hardware superstore in the eastern Ukrainian city of Kharkiv, killing at least four people and wounding 38, Ukraine officials said, in an attack condemned as "vile" by President Volodymyr Zelensky.
Kharkiv regional governor Oleg Synegubov said "unfortunately there are already four dead" and "38 wounded" after two guided Russian bombs hit the store.
Two of those killed "were men who worked in the hypermarket," Synegubov said earlier in a video posted on Telegram.
Thick black smoke billowed from the destroyed building of the Epitsentr DIY superstore in the northeastern outskirts of the city, as firefighters sprayed water on a blaze sparked by the strikes, AFP journalists saw.
Still wearing her uniform, Lyubov, a cleaner at the hypermarket told how she escaped the building.
'Everything went dark'
"It happened all of a sudden. We didn't understand at first, everything went dark and everything started falling on our heads," she said.
"It was good that my phone lit up, thanks to the flashlight I found where to go, but in front of us everything was burning already."
The Epitsentr chain sells household and DIY goods.
"As of now, we know that more than 200 people could have been inside the hypermarket," Zelensky said on Telegram, condemning the daylight attack on an "obviously civilian" target.
French President Emmanuel Macron wrote on X that Russia's strikes on the store were "unacceptable".
"France shares the pain of the Ukrainians and remains fully mobilised alongside them," the French president wrote.
Russia's TASS state news agency cited a security source as claiming that a missile strike destroyed a "military store and command post" inside the shopping centre.
The regional governor said there was "no contact with some of the staff" and "according to our information, visitors could still be in the building".
Kharkiv, Ukraine's second-largest city, is just a few dozen kilometres from the border and regularly comes under attack from Russian missiles.
'Brutal blow'
Later Saturday, another strike hit the centre of Kharkiv, injuring 14 in an area containing a post office, a hairdresser's and a cafe, city mayor Igor Terekhov said.
Zelensky had visited Kharkiv on Friday and met officials to discuss the defence of the surrounding region.
On Saturday, he urged world leaders to supply Ukraine with "sufficient air defence protection" to "prevent such terrorist attacks".
"Russia struck another brutal blow at our Kharkiv -- at a construction hypermarket -- on Saturday, right in the middle of the day," Zelensky said.
"Only madmen like Putin are capable of killing and terrorising people in such a vile way," he added, referring to the Russian president who ordered his troops into Ukraine in February 2022.
The latest attacks came after Russia launched a ground offensive in the Kharkiv region on May 10. Ukraine said Friday that it had managed to halt Moscow's progress and was counterattacking.
Ukraine's rescue service posted images of firefighters spraying water inside the blazing Epitsentr store building, with the roof torn open and debris strewn around.
They said the fire had raged over an area of 10,000 square metres (108,000 square feet) but that the firefighters had managed to contain it.
"There were a lot of workers and shoppers inside," Zelensky said.
Border strikes
Russia and Ukraine accused each others' forces of attacks in the border area Saturday.
Russia said that Ukraine shelled a small town in the Belgorod border region, killing two people and wounding 10.
Ukraine said Russia shelled the village of Kupiansk-Vuzlovyi, a railway hub in the Kharkiv region near the border, wounding five, the regional prosecutor's office said.
It said two vehicles came under fire: a car with two passengers and an ambulance with a driver, a paramedic and a 64-year-old patient.
Russia also carried out air strikes on the Kupiansk district, damaging a factory and residential buildings, prosecutors said.
In the eastern Donetsk region, shelling on Saturday killed a 40-year-old woman and wounded four other people, said the head of the regional administration, Vadym Filashkin.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)