Police arrested a man after he allegedly posted threats against St. Paul College employees and then showed up on campus on Tuesday.

The 40-year-old student was unarmed, said Steve Linders, a St. Paul police spokesman.

Police were notified on Tuesday about 9:30 a.m. regarding threats posted on social media toward two of the college’s workers, Linders said.

“As soon as the threat became known, the (college’s) public safety team began proactive measures on campus in collaboration with law enforcement to increase the security and safety of the community,” Dee Dee Peaslee, St. Paul College interim president wrote to employees Tuesday.

Officers went to the college at Marshall Avenue, near Kellogg Boulevard, to investigate. Soon after, the suspect — Paul Moulton, of Minneapolis — showed up, Linders said.

The college’s public safety staff approached him and police took him into custody, Peaslee wrote. She said the safety of students, faculty and staff is their priority.

Moulton is enrolled in St. Paul College’s CNC (Computer Numerical Control) Toolmaking diploma program. He won’t be allowed back on campus, Peaslee wrote.