US embassy in Kyiv closes due to air attack threat

The U.S. embassy in Kyiv has closed due to a potential air attack threat. Embassy staff have been instructed to shelter in place, and American citizens in the area are advised to be ready for immediate shelter if an air alert occurs. This closure follows Ukraine's recent use of U.S.-made long-range missiles to strike targets in Russia. The U.S. authorized this action to support Ukraine's defense efforts amid ongoing conflict. In response, Russia has updated its nuclear policy, expanding conditions under which it might use nuclear weapons. Moscow warns that any aggression from non-nuclear states, especially those backed by nuclear powers, could be seen as a coordinated attack.