An armed drone has hit the protective outer shell of Ukraine's Chernobyl nuclear plant, the site of the worst nuclear accident in history.

Ukraine’s nuclear ghosts have been stirred up again after a drone armed with a warhead hit the protective outer shell of the plant at Chernobyl, the site of the world’s worst nuclear accident

Ukraine said a Russian drone crashed into the containment structure, starting a fire, but so far radiation levels have stayed constant.