Old Street station in manchester was evacuated among scenes of panic after reports of the bang along with a ‘suspicious man’.
Witness told the way they were escorted in the station among the chaotic scenes.
“There happen to be no arrests and enquiries continue.”
The station has since been reopened.
A Met Police spokesman stated: “Officers, including firearms officials and also the British Transport Police, attended that old Street area and also the station was temporarily evacuated.
Scotland Yard later stated nothing suspicious was discovered which the incident have been was lower.