Joran van der Sloot, suspected in the disappearance of American teen Natalee Holloway in 2005, has been involved in several stabbing incidents in a Peruvian prison, Dutch media reported, citing Panorama magazine.
, charged with murdering a woman in Peru, has stabbed three people and had been put into solitary confinement several times.
A lawyer for Van der Sloot did not deny the stabbing incidents, DutchNews.nl said, citing Panorama.
Van der Sloot, 23, is accused of first-degree murder in the killing of Stephany Flores, whom he met at a Lima casino and allegedly killed in a hotel room.
First-degree murder carries a 15- to 35-year sentence in Peru. Manslaughter could bring three to five years.
The young Dutchman remains the key suspect in the unsolved 2005 disappearance of Holloway, an 18-year-old Alabama student he met in a casino on the Caribbean island of Aruba.
Van der Sloot has several times confessed and then recanted a role in the disappearance of Holloway, who was visiting Aruba on a high school graduation trip with classmates.
Van der Sloot was indicted last June in Alabama on federal wire fraud and extortion charges for allegedly trying to extort $250,000 from Holloway's mother, Beth Twitty, in exchange for information on where she could find her daughter's body.
This article includes reporting from msnbc.com staff and The Associated Press.