FRANKFURT (AP) — German police say French urban climber Alain Robert faces a criminal investigation and fine after scaling one of Frankfurt's tallest buildings Thursday.

Robert, known as “Spiderman” for his daring stunts, clambered to the top of rail company Deutsche Bahn 166-meter-high (545-foot-high) office building in Germany's financial capital, untethered and wearing a silver suit and cowboy boots.

Frankfurt police spokesman Thomas Hollerbach told The Associated Press that Robert is in triple trouble after the unauthorized climb.

First, Deutsche Bahn has filed a criminal complaint for trespassing against Robert. Second, he may be required to pay the cost of the police operation to secure the area during the climb. Finally, a drone that Robert's team used to film the climb didn't have the required authorization and could incur a further fine.

As a foreign resident, Robert was required to deposit a security against possible future criminal proceedings and then released, Hollerbach said.