A member of Home of Commons workers was arrested after a combat exterior one in every of Parliament’s busiest bars.
The Sports activities and Social Membership has been closed and a 57-year-old man arrested on suspicion of GBH and affray.
Police later launched the person, who stays below investigation.
A 64-year-old man, additionally a Commons worker, is reported to have been taken to hospital in an ambulance following the incident, which happened on Tuesday night.
He wanted therapy for non-life threatening accidents.
Scotland Yard stated police had been nonetheless investigating what occurred however no-one else was thought to have been concerned.
A Home of Lords spokesperson stated the Sports activities and Social Membership bar would keep closed till the investigation was full.
The venue, which is a well-liked hang-out for MPs and their workers, is a big conventional pub within the bowels of the Parliamentary property.
It was lately taken again below the direct management of the Home of Lords authorities from an out of doors contractor and its future was already regarded as unsure.