Drones piloted by Ukrainian investigators are being used by prosecutors to document alleged Russian war crimes in Kharkiv and the region before they are destroyed by weather changes or human intervention. #Ukraine #War #Drone #Russia #Kharkiv #News #Reuters #newsfeed Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: https://www.reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en