ST. IGNACE (AP) — Authorities are looking for someone who boldly climbed to the top of a Mackinac Bridge tower, took pictures and later posted them on social media.

The incident apparently occurred in early November. Alarms were triggered hours apart, but no one was caught, the Mackinac Bridge Authority said Wednesday.

The agency’s executive secretary, Kim Nowack, called it “inexcusably reckless.”

“It is very troubling that someone would put their own life at risk, not to mention that of others, just for photos and thrills on our state’s signature bridge,” said Paul Ajegba, director of the state Transportation Department.

State police said the climber could face a felony trespassing charge.