Dutch national Joran van der Sloot (35), who is serving a 28 year sentence for the murder of Stephany Flores in a Peruvian jail has been sentenced to another 18 years for drug smuggling, the Telegraaf reports.

Van der Sloot was said to have played a ‘crucial role’ in selling cocaine smuggled into the Juliaca prison by a family member of a fellow prisoner and even sending it to addresses outside Peru.

The practice came to an end when prison guards discovered the route the drugs were taking. Van der Sloot was subsequently transferred to the Challapalca prison which is known for its extremely harsh regime, the paper said.

Van der Sloot was arrested in 2010 for the murder of Peruvian national Stephany Flores. He had met Flores at a poker tournament in Lima, took her to his room and killed her there because he thought she was an FBI agent. He then fled to Chile were police apprehended him.

Natalee Holloway

The murder of Flores happened five years after 18 year-old American national Natalee Holloway went missing following a meeting with Van der Sloot. He was arrested twice in connection with her disappearance but released because of a lack of evidence.

Holloway, whose body has never been found, was officially declared dead in 2012.

Van der Sloot’s new sentence means he will remain in jail until 2045.