At least two people were killed and three wounded after Russian forces shelled the southern Ukrainian city of Kherson, authorities said on Tuesday.

Regional prosecutors opened a war crimes investigation into one of the strikes, which occurred around 9 a.m. and killed a 48-year-old man and a woman who had not yet been identified.

"Terrorists," Andriy Yermak, the head of Ukraine's presidential administration, posted on Telegram along with two images of bodies laying on a sidewalk.

Kherson Mayor Roman Mrochko said two doctors had been wounded in a separate artillery strike on a medical facility early on Tuesday.

Reuters could not independently confirm the details of either incident.

Russian forces have regularly shelled Kherson since retreating from the regional capital late last year to the other side of the Dnipro River. (Reporting by Dan Peleschuk; Editing by Alex Richardson)