a massive fire at a fertilize plant near winston salem burning out of control forcing thousands of residents to leave their homes. officials evacuating people within one mile radius over concerns of a potential explosion after the fire jumped to a rail car full of an explosive compound. evacuation zone includes wake forest university which cancelled classes and also a nearby prison with over 200 inmates. also this, for the second day in a row, we track a series of bomb threats at historically black colleges and universities. postponed or cancelled classes because of the threats. cnn's joey ja johns is trackings for us. joe, what are the schools saying about this? >> kate, it's really mostly about internal communications right now letting their students know what's going on, what a number of these schools have been dealing with through most of the morning is getting