All classes were canceled at the University of Central Florida Monday morning following the discovery of a student's body and explosives.
Authorities evacuated 500 students from a dorm building after someone called 911 and reported a person with a gun.
Police arriving at the building found a person dead inside a dorm room of an apparent suicide.
They also found an assault weapon and what they call "improvised explosive devices".
The Orlando campus will be closed all day while police and federal agents investigate.