Cleanup is continuing at the site where a train carrying potentially hazardous materials derailed into the Yellowstone River in Montana, according to officials. SUBSCRIBE to ABC News on YouTube: bit.ly/2vZb6yP Latest updates: abcnews.go.com Watch FULL EPISODES on Hulu: abcn.ws/3bzvQQn #yellowstoneriver #train #derailment #abcnews