According to President Volodymyr Zelenskyy, several people were injured after Russian forces bombed a blood bank in Ukraine.
A Russian guided bomb hit the transfusion center in the city of Kupiansk in the eastern Kharkiv region late Saturday.
“There are dead and wounded,” Zelenskyy said on his Telegram channel.
The report has not yet been independently verified.
Kupiansk is a railway junction less than 10 miles from the front.
Zelenskyy said rescue workers were putting out a fire at the scene and called the strike a “war crime”.
He did not say how many people were killed or injured.
Russia denies deliberately targeting civilians as part of a full-scale invasion that has killed thousands, uprooted millions and destroyed cities.
The reported attack came shortly after Zelenskyi said Russian missiles had hit a facility belonging to Ukrainian aviation group Motor Sich, one of several companies seized by the government since Moscow invaded.
Motor Sich was located near Khmelnytskyi in western Ukraine, about 300 kilometers southwest of Kiev.
The Khmelnytskyi region, hundreds of kilometers from the front lines of fighting and home to a major Ukrainian airbase, has come under regular Russian attacks in recent months.
The blood bank bombing came hours after a top Putin ally demanded revenge on Ukraine following two naval drone attacks.
The almost identical kamikaze sea drone attacks, which took place within just 24 hours, were described by Maria Zakharova as a “terrorist attack”.
The Russian Foreign Ministry spokeswoman vowed to “punish” those responsible for the attacks on the president’s prized warships.
Ukraine launched its first naval drone strike on Russia’s key port and naval base, Novorossiysk.
Another 450 kg of TNT explosives were then sent in drums to a 4,754-ton Russian oil and chemical tanker in the Black Sea.