umc building on campus officials deemed that to be a hoax. 20 minutes later cu tweeted there were uncommuted folks. hundreds of students and staff and visitors were evacuate maryland -- were evacuated. >> we looked up and these three huge guys ran in. >> police officers. >> yeah. and they had these huge guns and started screaming everyone and they screamed everyone get out of the building. >> i was headed to the umc and i saw a lot, practically every kids coming from every building running in different directions away from campus all at once. >> reporter: police spoke with us a half hour ago and said this is a sobering reminder that this thing can happen anywhere and staff and students need to be on prepared. officials have deemed that the campus is safe. of course a lot of chaos that still needs to be sifted through regarding both investigations. but again, more details as the days come. ryan. >> certainly the investigation only just beginning but the good news is that the students and staff are safe and sound tonight. christine, thanks. >>> hurricane matthew has become the strongest atlant