Liam Payne's death remains under investigation as officials attempt to reconstruct his final hours, according to the Public Prosecutor's Office.

The head of the National Criminal and Correctional Prosecutor's Office No. 14, Andres Esteban Madrea, met with Payne's father, Geoff Payne, and informed him that "the toxicological and histopathological studies complementary to the autopsy have not yet been completed, and that their results are necessary to decide on the release of the body," according to a release published on Tuesday. 

"He also informed him that the prosecution is not aware to date of other studies or laboratory analyses and has not released any type of specific technical report outside the exclusive framework of the investigation and the judicial process corresponding to the case."

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One Direction singer Liam Payne wears black shirt on red carpet.

Authorities are investigating the circumstances surrounding Liam Payne's death. (Getty Images)

In addition, reports are being carried out on "cell phones, computers, photographs and videos from security cameras that require a longer analysis time."

Authorities have received "numerous statements" that "were also taken to reconstruct the victim's final hours and the scene of the events, a process that is still ongoing with hotel workers, acquaintances, technical and medical professionals, and other people linked to the victim through their work."

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"The toxicological and histopathological studies complementary to the autopsy have not yet been completed, and that their results are necessary to decide on the release of the body."

— Public Prosecutors Office

Payne's father wants "the events to be known" surrounding Liam's death, and is willing to testify "about everything he knows about his son's life that could help the investigation," the release stated. The British consulate was informed of the legal procedures required in the case as Liam was a British citizen, and Geoff will be provided with "dynamic police support until the judicial proceedings are completed."

Geoff Payne mourns the loss of his son Liam Payne with One Direction fans

Geoff Payne stood with fans outside the Casa Sur hotel days after his son, Liam Payne, died. (Getty Images)

Liam Payne poses for a portrait

A preliminary autopsy showed Payne died as a "result of the fall he suffered from the balcony of the third floor room." (Getty Images)

"Due to the need to respect the memory of the victim, everything that arises in the context of the investigation will first be reported to the family, and given the high public exposure of the musician, communication will be limited to the institutional channels of the MPF," officials stated.

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Payne died on Oct. 16 as a "result of the fall he suffered from the balcony of the third floor room of the hotel in the Buenos Aires neighborhood of Palermo where he was staying," according to the National Criminal and Correctional Prosecutor's Office No. 16, temporarily headed by Marcelo Roma. He was 31. 

Circumstances surrounding Payne's death are still being investigated as a "dubious" death, although it appeared as though Payne had been alone when the fall occurred and that the musician was "going through some type of outbreak resulting from substance abuse," according to the preliminary report.

One Direction's Liam Payne poses for a photo with fellow band members Harry Styles, Zayn Malik, Niall Horan and Liam Tomlinson

Liam Payne found fame with One Direction, one of the best-selling boy bands of all time. (AP Photo/Jonathan Short, File)

Authorities confirmed Payne died after 5 p.m. at the Casa Sur hotel in the Palermo district, located on Costa Rica Street. An employee called the emergency line to ask for help for a guest who was "under the influence of drugs and alcohol who had destroyed some objects in the room."

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On Monday, the Associated Press reported that initial toxicology results showed that the 31-year-old died with cocaine in his system.

Final toxicology results are still pending and not expected to be made public for weeks, but the preliminary report "suggested evidence of exposure to cocaine," an official explained to the outlet before stressing that the initial results were not an accurate reading of the amount that was circulating in his blood when he died.

Singer Liam Payne sings into a microphone during concert.

Authorities performed an autopsy on Payne shortly after his death on Oct. 16. (Nathan Congleton)

In addition, the official spoke to the outlet under the condition of anonymity. A preliminary autopsy report released last week revealed that the One Direction singer died from "polytrauma" and "an internal and external hemorrhage."

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In 2008, Payne was discovered by Simon Cowell while auditioning for "The X Factor" when he was 14. Despite being cut, he returned to the show two years later and joined Harry Styles, Zayn Malik, Niall Horan and Louis Tomlinson to form a supergroup that later placed third in the competition.

One Direction signed with Cowell after "The X Factor" and became one of the bestselling boy bands of all time.

Liam Payne and Cheryl Cole

Payne dated singer Cheryl Cole for nearly two years. The former couple has one son, Bear. (Getty Images)

The group found global fame for its hits, including "What Makes You Beautiful," "Story of My Life" and "Best Song Ever." They released five chart-topping albums in five years after competing on "The X Factor" and embarked on four world tours.

Payne had one child, a 7-year-old son, Bear, with ex-girlfriend Cheryl Cole.

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