KYIV, Ukraine (AP) — 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.

A combined Russian missile and drone attack in Kyiv overnight Tuesday killed at least 14 people — including an American citizen — and wounded 44 others, according to Ukrainian officials.

Moscow’s drone strikes have grown exponentially thanks in part to a deal with Iran to produce its Shahed drones on Russian soil. An attack overnight that focused on Kyiv killed at least 15.