Australian authorities arrested a 23-year-old man whose train surfing stunt was caught on camera.
The unidentified man got onto the back of the train Saturday afternoon before it left Leederville Station, which is located in Perth, Australia.
The Public Transport Authority (PTA) told the Australian Broadcasting Corp that the stunt could have easily turned deadly because the train was going about 70 mph.
"He was clinging on to a windscreen wiper -- were he to fall it's a very unfriendly and unreceptive surface with ballast and rail and concrete sleepers, he would have almost certainly been killed, if not badly injured," PTA spokesman David Hynes told the TV station.
Facebook user Chantelle Stone posted video of the man clinging to the commuter train as it passed.
But she wasn't the only person who noticed.
PTA officials who were monitoring CCTV saw the incident and watched as the man got off the back of the train and went inside at the next stop.
The man was arrested at the following stop and authorities said he will likely be charged with trespassing.
Hynes told the Australian Broadcasting Corp that this is the first time someone has been caught train surfing.
"This is the first time in the memory of anyone at the PTA that we've actually known about it while it was happening," Hynes said. "In all other instances it generally goes up on Facebook or on the internet, on YouTube after the event."