Peruvian officials will take Joran van der Sloot to a maximum security prison in Lima, Peru, at midnight tonight before he will be made available to the United States for the transfer, the Interpol chief in Peru tells Fox News Digital.

Van der Sloot is the prime suspect in the disappearance of Natalee Holloway during a 2005 Mountain Brook High School, Alabama, senior trip in Aruba. 

The Dutch national is being held in a Peruvian prison for the murder of 21-year-old Stephany Flores in 2010. Van der Sloot was originally sentenced to 28 years in prison for the killing, but more time was added on because of a drug smuggling scandal he was involved in while in jail.

Col. Carlos López Aeda, the chief of Interpol in Lima, Peru told Fox News Digital on Friday evening that officials will begin taking Van der Sloot from Challapalca Prison to a maximum security prison in Lima at midnight tonight.

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Joran van der Sloot

Joran Van der Sloot (L) of the Netherlands is escorted by Peruvian police officers at the police headquarters in Lima June 5, 2010. Chile on Friday deported to Peru Van der Sloot who is wanted for the murder of 21-year-old Stephany Flores in Lima and has been linked to the 2005 disappearance of an American teenage girl in Aruba.        REUTERS/Mariana Bazo    (PERU - Tags: CRIME LAW POLITICS) (REUTERS/Mariana Bazo    (PERU - Tags: CRIME LAW POLITICS))

"[Van der Sloot] will leave [Challapalca] tonight and on Sunday morning he will be in Lima, ready for the transfer," López Aeda said.

Van der Sloot is currently being held at Challapalca Prison, which is almost a day's drive away from Lima.

Before van der Sloot is transferred to the U.S., he'll undergo several medical tests, López Aeda previously said.

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The entrance of the Challapalca maximum-security prison

The entrance of the Challapalca maximum-security prison, where Joran Van der Sloot is serving a 28-year sentence for the murder of Stephany Flores, in Tacna, Peru, Friday, May 12, 2023. The chief suspect in the unsolved 2005 disappearance of U.S. student Natalee Holloway is poised to face charges linked to the young woman's vanishing for the first time after the government of Peru authorized his temporary extradition to the U.S.  (AP Photo/Elmer Jilaja)

Van der sloot

Joran Van der Sloot of the Netherlands (C) is transferred by the police from the police headquarters to the prosecutor's office in Lima June 10, 2010. An official at the Peruvian national police's criminal investigations unit told Reuters on Tuesday that Van der Sloot admitted he killed 21-year-old Stephany Flores, whose body was found in a Lima hotel room last week.  (Reuters/Stringer)

"We are going to carry out the medical procedures to certify Joran's good health, the COVID tests that even the staff who are going to transfer him have to do, those of us who are going to participate in the security convoy and guarantee that all his rights are respected so that everything is carried out in the fastest and most efficient way unless the defense presents some appeal which we highly doubt it,"  López Aeda said.

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The hotel where Natalie Holloway stayed

A general view of the Holiday Inn resort in Noord, Aruba, Friday, May 12, 2023. The Holiday Inn resort is  where Natalee Holloway stayed in 2005 before she disappeared. (Mega for Fox News Digital)

After being transferred to Lima, Van der Sloot will be made available to the FBI for transfer to the United States.

Natalee Holloway's body has never been found. In January 2012, van der Sloot pleaded guilty to killing Flores, and Natalee Holloway was legally declared dead that month.

Natalee Holloway

Natalee Holloway was last seen alive in Aruba while on a Mountain Brook high school senior trip. (Federal Bureau of Investigation)

Natalee Holloway's mother, Beth, said in an earlier statement shared with Fox News Digital that the extradition gives a chance for justice to finally be served.

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Beth Holloway speaks at a microphone

Beth Holloway, mother of Natalee Holloway, speaks during the opening of the Natalee Holloway Resource Center (NHRC) at the National Museum of Crime & Punishment in Washington, June 8, 2010. Natalee, 18, of Mountain Brook, Alabama, vanished while on a high school graduation trip to Dutch-owned Aruba, an island in the Caribbean in 2005. She never showed up for a flight home and her disappearance made international headlines. (AP Photo/Pablo Martinez Monsivais)

"I was blessed to have had Natalee in my life for 18 years, and as of this month, I have been without her for exactly 18 years. She would be 36 years old now," Beth Holloway said. "It has been a very long and painful journey, but the persistence of many is going to pay off. Together, we are finally getting justice for Natalee," Beth Holloway said.