Front Range Community College's Westminster campus is closed after a man called dispatch and said a bomb would explode there today.

The campus at 3645 W. 112th Ave. was shut down "as an exercise of caution," the college's Web site said.

Trevor Materasso, a spokesman with the Westminster police, said a man made a 911 call from a pay phone in Thornton and said "there was a bomb in the building that would go off today."

Four bomb-certified K-9 dogs, Arvada police, and the sheriff's offices of Adams and Boulder counties combed the campus. No explosives were found, Materasso said.

"We searched the campus. We had staff from the college help us check to see if anything was out of place. We didn't find anything. We haven't had anything go off," he said today.

The closure includes College Hill Library and the Children's Place child-care center.

He said detectives are continuing their investigation.