In a shocking footage caught in a camera shows a man performing a sex act on a busy Melbourne train.
On Wednesday afternoon, the man was seen performing the act on himself which is seen by most of the commuters.
The man was seen enjoying the moment and is hardly concerned about concealing the act.
The Facebook post has been viewed over 12,000 times and has over 200 comments.
In the post people commented their experiences who had seen similar behavior before.
Victoria Police were contacted by Daily Mail Australia over the incident.
Last year, in September a similar incident happened where a woman was caught performing a sex act on a man in a train with passengers nearby.
A passenger captured the scene on her camera where it shows the man facing the woman who is sitting down.
As the train departs the station the woman can be seen with her face directed very closely at his nether region.