Video of two people riding a Montreal metro standing between cars has been shared more than 300 times and seen over 46,000 times.
One of those views was by the STM, and it is not impressed.
"This kind of behavior goes against the regulation R-036" said spokesperson Isabelle-Alice Tremblay.
She said the public transit agency right now does not know when or where exactly the video was taken. It was posted to the Spotted: STM Facebook page on Tuesday.
"It is important to remember that this type of behaviour is dangerous and that it jeopardizes safety" Tremblay said.
While this type of incident is rare, Tremblay said it is very dangerous for the individuals outside and inside the metro.
Anyone with information is asked to contact the STM.