A massive overnight Russian strike on Kyiv, the Ukrainian capital, killed 14 people and wounded at least 177 others, Ukrainian officials said.

North Korea is suspected of supplying Russia with ballistic missiles, antitank rockets and millions of rounds of ammunition while thousands of its soldiers are reported to have died during operations to oust occupying Ukrainian troops from Russia’s border region of Kursk.

An overnight Russian missile and drone bombardment of Ukraine killed 15 people and injured 156, local officials said Tuesday, with the main barrage demolishing a nine-story Kyiv apartment building in the deadliest attack on the capital this year.