KYIV, Ukraine (AP) — A combined Russian and missile attack in Kyiv overnight Tuesday left at least 20 people wounded, according to Ukrainian officials.

Waves of Russian drones and missiles struck districts across the Ukrainian capital Kyiv early on Tuesday, damaging an apartment building, sparking fires and injuring up to 16 people, city officials said.

Moscow’s drone strikes have grown exponentially thanks in part to a deal with Iran to produce its Shahed drones on Russian soil.