Russia attacked the Ukrainian capital Kyiv with a sophisticated combination of missiles and drones for the first time in 73 days on Wednesday, authorities reported, as the Pentagon said most of the North Korean troops sent to help Moscow’s war effort are fighting to drive Ukraine’s army off Russian soil in the Kursk border region.

Russia struck Kyiv with a sophisticated missile and drone attack for the first time in 73 days on Wednesday morning and damage is still being assessed, a top official in the Ukrainian capital said. Air raid warnings blared for hours.

And in occupied Crimea, a senior Russian naval officer has been killed in a bomb attack claimed by Kyiv. According to a Kyiv security source, the bomb attack in Sevastopol was a Ukrainian hit on one of its highest-ranking targets to date.