Campus Safety escorted a man out of the library in handcuffs at about 12:10 p.m. Friday.

Campus Safety officers arrived on the scene about a minute after they received a call from the library. Officers from the Los Angeles County Sheriff’s Department soon arrived and escorted the man off campus, said Justin Shelby, public information officer for Campus Safety.

A library employee said the man had been demanding access to the library and yelling for about 35 minutes when Campus Safety arrived. Campus Safety officers told the man to calm down as he continued yelling about his rights to accessing the library. Witnesses say the man, described as elderly and Asian, yelled things like “Don’t do that” and “I’m heart patient” as officers handcuffed him. The man was “yelling, cursing and pestering animatedly,” Shelby said.

Officers found no weapons on the man, but determined he still posed as a possible threat.

“We were concerned about the officers’ safety and the safety of the students and the other people in the library,” Shelby said.

Shelby said the same man had been reported to Campus Safety earlier in the week, when he was warned that his presence on campus was considered trespassing and escorted off campus.

Campus Safety is following up on the incident and will have more details later.