POLTAVA, Ukraine (AFP) — Kyiv and Moscow traded blame on Sunday for a strike on a school in a Ukrainian-occupied town in Russia’s Kursk region, while Kyiv also said weekend missile and drone attacks killed at least 15 people in Ukraine.

The Ukrainian Air Force said on Sunday that four people were killed in an attack the previous day on a three-storey former school building sheltering evacuated civilians, with dozens more fished from the rubble.

Russia has not given a toll for the strike, but accused Kyiv of targeting the school in a “crime that has no forgiveness and no statute of limitations.”

Across Ukraine, at least 15 people were killed as Russian strikes pummelled the center and east of the country overnight Friday into Saturday, according to regional authorities and police.

Eleven people, including a child, were killed in Poltava when a missile hit a residential building early Saturday, the local administration said.

Officials said at least 16 people were wounded as rescuers used cranes to comb the ruins of the smoldering building for survivors.

“On the fifth floor, a woman, my friend, was carried out,” said Olena Svyryd, a Poltava local.