Detectives investigating the disorder following the rave in Croydon where teenager Rio Andrew died have today released eight new images of people they would like to trace.
Fifteen-year-old Rio was taken to hospital in the early hours of June 15 after falling ill at the event in the disused Royal Mail sorting office in Cherry Orchard Road.
Rio, from west London, died in hospital the following day.
The images, above, are of people who were in and around the site of the rave.
South Area Commander Simon Letchford, said: "I am appealing for anyone who recognises these people, or has information about the disorder, to come forward and speak to police. The behaviour of some of those attending this illegal rave and the direct attacks on officers who were there to maintain public safety is completely unacceptable. Twenty people have now been arrested and I would like to thank the public for their support.
"I am particularly keen for anyone who took images or video on mobile phones of the events in and around the area to provide these to police. They may contain vital evidence to help track down those responsible for this violence."
Anyone with material can send it to police via email@example.com.
So far, a total of 20 people have been arrested in connection with the event, nine of whom were arrested during the event.
Two men have been charged. A 21-year-old man was charged with violent disorder, drugs offences and assault on police. A 25-year-old man was charged with violent disorder and drugs offences.
A 47-year-old man and a 30-year-old man were given adult cautions for possession of Class A drugs.
Three men were arrested on suspicion of money laundering, a 17-year-old boy was arrested on suspicion of violent disorder and a 22-year-old man was arrested on suspicion of criminal damage.
All five have been bailed pending further enquiries.
Police made five further arrests on June 27 for handling stolen goods and criminal damage offences in connection with the investigation.
The five men have been bailed pending further enquiries.
Two further arrests have been made for violent disorder.
The two men have been bailed pending further enquiries.
Four further arrests have been made - were arrested on suspicion of violent disorder and [S; T] were arrested on suspicion of criminal damage.
All four have been bailed pending further enquiries.
A 19-year-old also taken ill at the rave has now been discharged from hospital.
Anyone with any information about the men pictured is asked to contact the Public Order Investigations Team on 020 8246 0076 or Crimestoppers anonymously on 0800 555 111. Footage can be emailed to the team at firstname.lastname@example.org.