Five people have been charged in connection with the death of One Direction star Liam Payne, Argentine authorities have announced.
Payne died on 16 October after falling from a hotel balcony in the capital, Buenos Aires.
Here's what we know so far about the police investigation and the circumstances surrounding Payne's death.
Payne was visiting his former bandmate Niall Horan, who was in the country on tour.
He posted on Snapchat earlier in October that he was visiting Horan for a catch-up, saying: "It's been a while since me and Niall have spoken, we've got a lot to talk about." He added: "No bad vibes or anything like that, but we need to talk."
Payne attended Horan's show, posting social media videos of himself and girlfriend Kate Cassidy singing and dancing at the concert.
He documented much of his trip on Snapchat, including pictures of food, plans to play polo, and jokes about his hair. We also know the pop star visited a friend's house in Argentina in the days before he died, again with Cassidy.
But when Payne fell to his death, Cassidy had already left the country.
Payne had been staying in the upmarket Casa Sur hotel for three days before his death.
Payne's friend Roger Nores was at the hotel with him but left at 16:11 local time (20:11 BST) on 16 October, Argentine prosecutors have said.
Payne was then in the hotel lobby and was unable to stand "due to the consumption of various substances", they said.
At 16:54, cameras recorded him being dragged unconscious by three people – led by chief receptionist Esteban Grassi – and taken to his room, according to prosecutors.
Grassi called emergency services at about 17:00, with requests to respond to a hotel guest "who is overwhelmed by drugs and alcohol" and "destroying his room".
"I don't know if the guest's life is in danger. But he has a room with a balcony and we're a little afraid that he might do something life-threatening," Grassi said in a second call.
Payne's room was on the third floor and had a balcony about 14m (45ft) above an interior courtyard.
It is thought he fell from the balcony at about 17:07 local time.
Police arrived minutes later. Hotel staff told them a loud sound had been heard in the courtyard, where Payne's body was discovered.
He was pronounced dead at the scene, with the emergency services saying there had been "no possibility of resuscitation".
Police say they found his room in "total disorder". Local media later published pictures purportedly from his room, showing a TV with a broken screen, multiple bottles, cans, candles, aluminium foil and a half-full glass of champagne.
An autopsy, which was carried out that evening, established that Payne suffered "multiple traumas" and "internal and external haemorrhaging", with 25 injuries that were "consistent with a fall from a great height".
On 7 November, the prosecutor's office said toxicology tests revealed traces of alcohol, cocaine and a prescription antidepressant in his body.
They also ruled out self-harm or physical intervention by a third party.
They said Payne didn't adopt a posture to protect himself from the fall. That, along with other information, led them to conclude he was unconscious or semi-conscious when he fell.
They ruled out "a conscious or voluntary act", saying he didn't know what he was doing or didn't understand it.
However, following a further forensic report and an inspection of the scene on 5 December, a judge said that, in his state of intoxication, Payne "tried to leave the room through the balcony" and fell to his death.
The judge concluded that Payne tried to leave from the balcony because forensic experts had decided he did not pass out and lose his balance.
Five people have been charged in connection with Payne's death.
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