Eleven people have been charged with charged with violent disorder, and one has been charged with grievous bodily harm, after a 17-year-old boy was attacked by a group at a bus stop in London on Friday night.
On Monday, the Metropolitan police also released the images of three people they wish to speak to in connection to the assault.
Nine people were arrested over the weekend, with one released. Three people remain in custody, on suspicion of attempted murder and violent disorder.
The victim was attacked after revealing he was an asylum-seeker, and the incident is being treated as a suspected hate crime by police.
The teenager, believed to be Kurdish-Iranian, is being treated in a south London hospital and his condition is described as serious but stable, and not life-threatening.
He sustained critical head and facial injuries during the attack, which included repeated blows to the head, when a group of people attacked him in Croydon, south London, on Friday night at around 11.40pm.
Police said a group of youths approached the victim and two friends at a bus stop outside the Goat Pub in the Shrublands area of Croydon shortly before midnight.
“It is understood that the suspects asked the victim where he was from and when they established that he was an asylum-seeker they chased him and launched a brutal attack," said Detective Sergeant Kris Blamires.
On Saturday a 20-year-old man, a 24-year-old woman, a 20-year-old man, a 20-year-old man, a 24-year-old man, and a 20-year-old woman were arrested on suspicion of attempted murder and violent disorder. The 20-year-old woman was later released on bail.
The Met stated on Monday a further three people had been arrested on Sunday on suspicion of attempted murder and violent disorder: a 23-year-old man, a 26-year-old man, and a 17-year-old girl.
Gavin Barwell, the MP for Croydon Central, described the attackers as "scum" on his Twitter account as he appealed for any witnesses to come forward.
"I think most people in Croydon will be as appalled as I am that what appears to have happened is a young man who came to this country seeking sanctuary has apparently been targeted because of his,” he added in remarks to the Press Association.
"It's an appalling crime and I hope the people responsible are caught quickly and receive the full force of British justice."
Shadow home secretary Diane Abbott said the attack was part of a "deeply worrying rise in the politics of hate".
“Sadly this is not an isolated incident, but part of a sustained increase in hate crimes that this Tory government is yet to offer any effective response to," she said.
“We must make clear that there is no place for anti-foreigner myths, racism and hate in our society.”
DS Blamires said "a number of people" came to the aid of the victim as he lay unconscious following the attack, while the two friends escaped with only minor injuries.
“I would encourage all those who came to his aid and those in the immediate area who witnessed the attack or saw the males leave the scene to get in touch," Blamires added.
“All communities stand together against hate and we would ask anyone with any information to come forward immediately.”
Anyone with information is asked to call Croydon CID during office hours on 0203 276 2234 or 101, or Crimestoppers, anonymously, on 0800 555 111.
UPDATE: Six more people charged
The Met police charged a further six people on Tuesday, following the attack over the weekend.
Liam Neylen, 19, of Ferris Avenue, Croydon; Ellie Leite, 19, of Shrublands Avenuean, Croydon; James Neves, 22, of no fixed address; as a 17-year-old boy and a 15-year-old boy, also both from the Croydon area, were all charged with violent disorder. Ben Harman, 20, of Akabosi Close, Croydon, was charged with violent disorder, racially aggravated grievous bodily harm and dangerous driving.
All six people will appear in custody on 4 April at Croydon Magistrates' Court.
On Monday, a 17-year-old girl, and 23-year-old Kyran Evans, Shrublands Avenue, both from from Croydon, were charged with violent disorder.
Daryl Davis, 20, of Laurel Crescent, Croydon; Danyelle Davis 24, of Laurel Crescent, Croydon; Barry Potts, 20, of Fir Tree Gardens, Croydon; and Jack Walder, 24, of Myrtle Road, Croydon, were all charged with violent disorder. George Walder, 20, of Myrtle Road, Croydon, was charged with violent disorder and racially aggravated grievous bodily harm.