At least three people, including two children, were wounded in a Russian attack on the Sumy region of northeastern Ukraine on Saturday, local authorities said.

Sumy region borders Russia’s Kursk region and has been regularly shelled by Russian forces for months.

“Russians dropped a bomb on a residential building. Two children and one adult were injured. One entrance of the apartment building was destroyed,” Sumy military administration said on the Telegram messenger.

A rescue operation was under way to find people who may be trapped by rubble, officials said.

Russia, which began its full-scale invasion of Ukraine in February 2022, did not immediately comment on the events in Sumy.