Hilarious footage captured the bizarre moment a man dressed in a suit was caught running through a busy tunnel.
The well-dressed man was spotted running through the Burnley Tunnel in Melbourne last week.
A passing commuter captured the strange encounter before sharing the video on Reddit on Friday.
Footage showed the man speeding through the tunnel in his leather shoes while staying close to the wall on the right side of the tunnel.
He seemed unfazed as the commuter who recorded the incident passed him.
“I was on my way home tonight and there was a middle-aged man running through the Burnley tunnel,” they wrote.
“The man was wearing a suit, what do we think the story is here?”
Transportation officials said they are trying to identify the man and find out how he ended up in the tunnel as social media users shared their own theories.
A man was seen walking through Melbourne’s three-lane Burnley Tunnel last week, and Australians tried to figure out what he was doing
“When you get directions to Crown on Google Maps but forget to switch from car to walk,” one person wrote.
“I bet someone got him out of the car in the middle of the tunnel,” said another.
A third added: “I see the Christmas celebrations are in full swing.”
Many Aussies saw the humor in it and some were convinced the man was a ‘superhero’ or a spy.
“OMG it’s Jason Bourne,” one person wrote.
‘Tom Cruise!’ said a second.
“Serving the main character’s energy, good for him,” another added.
Others were more concerned about the quality of the air he breathed.
“RIP his lungs,” one person wrote.
“He’s in big trouble, there’s no eTag on his suit,” one person said.
Some were impressed by its shape.
“Also, props for running in formal shoes, my man. That’s right at the top of the difficulty scale,” one person wrote.
Another added: “He’s in pretty good shape though.”
Daily Mail Australia contacted Transurban for comment.