Footage of a man spraying pepper spray in a tube station after he is refused to bring it at security check point.

The clip, shot in Wuhan, Hubei Province on August 20, shows a man suddenly spraying a bottle of pepper spray to everywhere in the tube station.

Then, more than a hundred of commuters at the tube entrance start to run away, as they cannot stop coughing.

Since the staff didn't allow the man to bring the pepper spray into the tube, he got emotional.

After they were standoff for six minutes, the man suddenly opened it and started to spray it into the air.

Police officers controlled the man and evacuated passengers immediately.

The man was detained for 10 days for the crime of disturbing order at public places.