Punches thrown as scuffle between two men breaks out on Shanghai tube

Two men were detained after fighting with each other on a tube in Shanghai, China.

Two men were detained after fighting with each other on a tube in Shanghai, China.

The video shows a man dressed in black and another man got into a heated argument and proceeded to swing at each other.

One man was bleeding from his face and another man headbutted the bleeding man.

Other passengers tried to stop the fight but failed.

They were then stopped by the tube's staff.

The video was filmed on May 3 and provided by local media.