PESCADERO, Calif. (AP) — A quick-thinking custodian safely confined a curious cougar in an empty classroom after it entered a Northern California high school Wednesday morning, authorities said.

The custodian was opening Pescadero High for the school day when the juvenile mountain lion was spotted, said Detective Javier Acosta with the San Mateo County Sheriff's Office. No students or teachers were on campus at the time, Acosta said.

"The mountain lion casually walked through campus and decided to go into an English classroom," he said. "The custodian acted quickly and managed to shut the door...