Russia’s southern Belgorod region came under attack from Ukrainian artillery fire, mortar shells and drones on Friday, authorities said, days after one of the most daring cross-border attacks since the war began.

Hours earlier, two drones attacked a Russian city in a region next to the annexed Crimea Peninsula, officials said.

The Kremlin’s forces, meanwhile, attacked a medical clinic in Dnipro, in central Ukraine, killing a 69-year-old passer-by and another civilian. More than 20 others were wounded, including two children, Ukrainian officials said.