Ukraine’s capital region was struck by Iranian-made kamikaze drones early Thursday, officials said, sending rescue workers rushing to the scene as residents awoke to air raid sirens for the fourth consecutive morning following Russia’s major assault across the country earlier this week. Kyiv regional governor Oleksiy Kuleba said the strike occurred in the area around the capital. It wasn’t yet clear if there were any casualties. Deputy head of the presidential office Kyrylo Tymoshenko said on Telegram that “critical infrastructure facilities” in the area were hit, without offering any details on which ones.