The FBI and local authorities are on scene at Harvard University’s medical school campus after an “intentional” explosion came from inside the building overnight. #Harvard #explosion #FBI "NewsNation Now" is a no fluff, no filler newscast featuring up-to-the-minute news drawing from a network of journalists across the U.S. Weekends starting at 1p/12C. NewsNation is your source for fact-based, unbiased news for all Americans. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij