Police investigating the murder of man in Southall have formally identified the victim as 23-year-old Surjeet Singh. Next of kin have been informed.
Mr Singh was stabbed in the neck during the large fight at a fairground in Southall Park on Monday.
London Ambulance Service and London's Air Ambulance were called to the scene and treated Surjeet, however he was pronounced dead at the scene.
Seven men have been bailed to return on a date in late August.
More top news
A dramatic car chase has been spotted in central London amid filming for the next Transformers film.
Londoners have been stunned by a tattoo convention in which six body artists finished one person's back.
A map showing how Londoners are leaving capital has been drawn up from official statistics.