"The enemy today hit a specialised establishment for disabled people near Oskil," regional official Oleg Sinegubov wrote on Telegram.

There were 330 people in the building at the time of the attack, he said, including 10 who required wheelchairs and 50 with reduced mobility.

He added that 63 had since been evacuated, without giving details on the others.

"Luckily, there are no victims," the emergency services said in a statement later, but added that the building's second and third floors had been damaged.

"There is no more heating, electricity and water access," Yuriy Shparaga, regional social affairs official, wrote on Facebook.

"The Russians have again carried out a brutal attack against civilians," said Sinegubov. "It is a war crime against civilians."

The attack comes two days after Russian strikes hit a children's and maternity hospital in the southern port city of Mariupol, leaving three dead including a child.

The hospital was "operational", a UN High Commission for Human Rights spokesman said Friday.

They rejected the claim by Moscow that the hospital was a staging area for Ukrainian nationalists.

The UN has counted 26 attacks on Ukrainian health centres since the start of the Russian invasion, leaving 12 dead and 34 injured.

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