Ukraine war live updates: Kremlin reacts to U.S.' chemical weapons allegations; Russia claims further advance in east Ukraine

LIVE UPDATES This is CNBC's live blog tracking developments on the war in Ukraine. See below for the latest updates. The U.S. has formally accused Russia of using chemical weapons against Ukrainian troops and announced late Wednesday that it is imposing more sanctions on Russian individuals and entities. The U.S. State Department released a statement late Wednesday in which it accused Russia of violating the Chemical Weapons Convention (CWC) by using the choking agent chloropicrin against Ukrainian forces. Read more …