Four of them are Romanian, while one of the 16-year-olds is British.
On Tuesday, Kent Police received reports a teenage girl had been raped in Gravesend between 25 March and 19 April.
Two men and three boys were subsequently arrested.
Ionut Dobre, 33, of Cleanthus Road, Woolwich, was charged with rape on 24 April alongside two 16-year-olds and a 15-year-old, all from Gravesend.
Benone Inofte, 46, of Salisbury Road, Gravesend, was charged the same day with aiding and abetting a rape.
Read more from Sky News:
Racist who raped Sikh woman jailed
Only one application for Trump's $1m 'gold card' approved launch
They appeared at Medway Magistrates' Court on Friday and will next appear at Woolwich Crown Court on 22 May.
Both men were remanded into custody.
Two of the boys were remanded into youth detention and the third was released into the care of the local authority.
Walker had been due to give evidence in the trial after his Channel 5 News co-host Claudia-Liza Vanderpuije alleged sexist and racial discrimination and unfair dismissal.
Walker was listed as a respondent in the claims alongside ITN and its chief executive Rachel Corp, and Channel 5 and its owner Paramount.
Vanderpuije had also filed a claim of suffering a detriment or dismissal due to exercising rights under the Public Interest Disclosure Act - more commonly known as whistleblowing.
The case had been due to be heard at the London Tribunals Centre next week, but an agreement was reached during a minute-long hearing on Friday, when employment judge Emma Webster dismissed all the claims.
A statement from her lawyers said: "Claudia-Liza Vanderpuije can confirm that a mutual agreement has been reached with ITN and Channel 5 in respect of the matters subject to Tribunal proceedings. Claudia-Liza fully withdraws her allegations relating to Dan Walker and does not intend to repeat or pursue them."
Walker shared a statement on his Instagram page moments after the agreement was announced.
'I hope she finds peace'
He wrote: "I firmly feel that I should never have been pulled into this; however, I was fully prepared to go to tribunal and defend the allegations which were levelled at me.
"Through all of this I have always been concerned for the claimant's well-being, and that has not changed. I hope she finds peace."
He also thanked his family and friends for their support, adding: "I will be forever grateful to those who were kind enough to go on the record with their accounts of working alongside me."
A Channel 5 spokesperson said: "We strongly reject the claims that were made and are pleased that this matter has been resolved and that all the allegations relating to Dan Walker have been withdrawn."
An ITN spokesperson said: "We continue to deny these claims in full, and we are glad this matter has been resolved."
It's understood that an earlier investigation into claims against Walker, commissioned by ITN but carried out independently, was not upheld, and no misconduct was found.
Walker, 49, presented BBC Breakfast for six years before joining Channel 5's flagship news bulletin, 5 News, as lead presenter in 2022. He hosted alongside Vanderpuije for a year.
A sports fan, Walker previously hosted Football Focus and worked across various Olympic Games for the BBC.
He also competed in Strictly Come Dancing in 2021, finishing in fifth place.
Vanderpuije, 47, worked for channels including London Live, Talk and Sky News before joining Channel 5 in 2018.
She was announced as co-host of 5 News in 2022, but left the company in 2024.
John Ashby, 32, was sentenced at Birmingham Crown Court, where he had faced charges of rape, robbery, intentional strangulation and religiously aggravated assault in connection with the incident in Walsall last October.
The trial opened on Monday, where prosecutors said Ashby "targeted" the woman after they were riding on the same bus, before he followed her and entered her home.
He changed his pleas to guilty on Tuesday after being told to "sort your s*** out" in a confrontation in court.
Passing sentence on Friday, High Court judge Mr Justice Pepperall told Ashby, of no fixed address, that remarks made during the attack "reveal you as a deeply unpleasant racist and Islamophobe".
He also addressed the victim and her partner in court, telling them: "I have nothing but admiration for your bravery. I hope that with time, love and support you are able to rebuild your lives."
The court heard extracts from "harrowing" body-worn police footage that showed the young woman, who has a legal right to anonymity, being comforted by a female officer after the assault.
Ashby said he was 'British master'
She said her attacker had called her a "bloody Muslim b****", and that she had been raped in a bathroom by the intruder, who claimed to be a "British master".
In a video interview played to the trial, the victim told police: "He had a stick in his hand. I said 'who are you' and I started screaming.
"He switched off the light. He said 'I just want fun with you'. He said 'you are a f****** Muslim b****', I said 'I am not a Muslim, I am a Sikh'."
Prosecutors told the court there could be no doubt that Ashby was the man who attacked the woman, citing DNA evidence, fingerprints found on a vape and the fact the victim pointed him out at an identity parade.
During sentencing remarks, the judge described how Ashby had suffered previous mental health issues and "psychotic episodes" but said they were caused "by your own voluntary actions in abusing illicit drugs".
"I have no doubt whatever that you are a very dangerous man and that you pose a significant risk to women," he added.
I'm finally free, says victim
The court heard a victim personal statement from the woman, who is in her 20s, who said the attack "changed every part of my life" but now she was "finally free" after watching Ashby admit his guilt
"I now no longer feel trapped. I can begin to live my life again," the statement added.
Read more from Sky News:
Charge over headteacher's murder
Former health boss admits embezzlement
Man, 92, charged with murder
Ashby confronted in court
On Tuesday, Ashby appeared to say "this is bulls***" during the proceedings and a member of the Sikh community angrily responded by confronting Ashby in the dock: "You're the bulls***. You need to sort your s*** out."
The defendant responded by telling the man to "get the f*** out of my face," before the judge adjourned the case and when the court reconvened, Ashby changed his pleas.
After the trial's conclusion, the man apologised to the judge, who chose not to pursue contempt of court proceedings.
Attack was 'deeply disturbing'
Senior crown prosecutor Rav Dhillon, from the Crown Prosecution Service, described the attack as "deeply disturbing" and "driven by religious hatred".
In a statement, she said: "John Ashby targeted a complete stranger, subjected her to prolonged violence and religiously motivated abuse, and left her traumatised.
"The fact Ashby initially denied these charges before changing his plea part-way through the trial reflects the strength of the evidence against him."
Meanwhile, Dabinderjit Singh, from the Sikh Federation lobby group, said the sentence would send "a strong signal to all racists that carry out violent attacks" and expressed hope it would "help the victim through this trauma".
It offers wealthy foreigners the opportunity to legally live and work in the country - for a $1 million (£740,000) fee.
The US president launched the scheme last year, arguing it would entice foreign talent to move to the country.
Mr Trump, who has pushed for the deportation of illegal immigrants since starting his second term, said at the time: "Essentially, it's the green card on steroids."
However, the scheme, which was not approved by Congress, is yet to do any heavy lifting with regards to the national debt, which runs into tens of trillions of dollars.
Commerce Secretary Howard Lutnick has revealed that only one unnamed person has so far been approved for a card.
"So, they have approved recently one person," Mr Lutnick said at a congressional committee hearing on Thursday.
However, Mr Lutnick added that there were "hundreds in the queue that they are going through".
He said: "They've just set it up, and they wanted to make sure they did it perfectly."
Read more from Sky News:
Trump hits out at Prince Harry
UK threatened with 'big tariff'
Mr Lutnick previously stated that the government sold $1.3bn (£962m) worth of the cards in a matter of days.
Asked how the proceeds would be spent, he told the hearing: "That will be determined by the administration, and its terms are for the betterment of the United States of America."
Trinidad and Tobago-born rapper Nicki Minaj, who came to the US as a child, was seemingly the first recipient of a "gold card".
She posted a photograph of her card, which she said had come "free of charge", on social media in January.
Applicants must pay a $15,000 fee on top of the cost of the card for vetting. The programme eventually opens a path for card-holders to apply for US citizenship.
Employers can also spend $2m (£1.48m) to bring in a foreign-born employee.
The scheme's website also states that a "platinum card", which will cost $5m (£3.69m), is "coming soon".
It will give foreigners the "ability to spend up to 270 days in the United States without being subject to US taxes on non-US income".
On Friday, Barry O'Sullivan, 45, was sentenced to six months' imprisonment, suspended for 12 months, after being found guilty at an earlier trial of causing the death of 68-year-old Pulvinder Dhillon by careless driving.
An unresolved technical failure on the M4 smart motorway network meant alerts for broken-down vehicles were not properly communicated in the days leading up to the collision, the trial heard.
O'Sullivan, of Wixams near Bedford, was driving a grey Ford work van at the time of the collision with a Nissan Micra, which had stopped in the outside lane of the M4 in Berkshire.
Ms Dhillon, who was a passenger in the Micra, suffered fatal injuries.
The Nissan, belonging to Ms Dhillon's daughter, had been stationary in the fast lane for six minutes before the collision, the trial at Reading Crown Court was previously told.
The court had previously heard how O'Sullivan was driving at speeds of 74-80mph for the five seconds before the crash.
Defence lawyers argued O'Sullivan could not have caused the death of Ms Dhillon because the crash was "inevitable" given that the car was stationary in the fast lane and the smart motorway was not displaying any warning signs to other motorists.
Read more from Sky News:
World Cup final tickets go on sale for $2.3m each
Israel accused of war crimes after killing of journalist
While acknowledging "something went wrong" with the motorway's safety alert system, the prosecution argued O'Sullivan still caused the death of Ms Dhillon by driving carelessly and "at speed".
He did not pick up on "cues" that the vehicle was stationary, including the fact other motorists were taking steps to avoid the broken-down Nissan, the prosecution told jurors.