MELBOURNE, Fla. -

Florida Institute of Technology was placed on lockdown on Tuesdayafter police say someone threatened to bring a weapon to the campus in a possible "swatting" complaint.

Police said they received a call that someone was heading to Florida Tech's Melbourne campus with an AR-15.

The school, which is located on West University Boulevard, was placed on lockdown just before 4 p.m. and it was lifted just before 5 p.m.

"Swatting" is a prank done in an attempt to get a SWAT team to respond to an incident.  It's sometimes done for revenge, according to the FBI.

Students were sent an email alert that said, "Unverified report of a potential serious incident on campus. Remain in place or do not come on campus until further notice. This is not a test."

Students tell Local 6 the lockdown has been lifted and they were secured inside of the campus for an hour.

Police said they believed there is no credible threat and they are following up on the possible "swatting" complaint.

Check back for more on this developing story.