ORLANDO, Fla. (AP) — Hundreds of students were evacuated early Monday from a dorm on the University of Central Florida campus in Orlando after explosive devices were found while authorities were investigating a death.

University police were called to the dorm around 12:20 a.m. after a fire alarm went off, UCF spokesman Grant Heston said. While they were on their way to the scene, a 911 call came in about a man with a gun.

Arriving officers found a man dead from what appeared to be a self-inflicted gunshot wound inside a residence at the Tower 1 dorm.

Heston said the dorm has suites, with a main kitchen and living area, along with four bedrooms. The dead man was inside one of the rooms. Inside the room, police also found an assault weapon, a handgun and improvised explosive devices.

Heston said the Orange County Sheriff’s Office and the FBI are helping with the investigation. The sheriff’s bomb squad was examining the explosive devises Monday morning.

About 500 students were evacuated from the dorm and an adjacent parking garage was closed.

“We don’t believe there is any imminent threat to the campus,” Heston said.

The university cancelled classes through noon Monday as a precaution.

Officials have not said whether the dead man was a university student.

A statement on the university’s website said the UCF Arena would open to accommodate displaced students. Counselors would be available to talk to students who need assistance.

Copyright 2013 The Associated Press.