The Ukraine Air Force says it is the largest attack on the country since the war began, hitting targets in six major cities and killing at least 16 people. READ MORE: http://tinyurl.com/4r69kxtp SUBSCRIBE to ABC News on YouTube: https://bit.ly/2vZb6yP Latest updates: http://abcnews.go.com/ Watch FULL EPISODES on Hulu: http://abcn.ws/3bzvQQn #news #war #russiaukrainewar #kyiv #gma #abcnews