Dutch citizen Joran van der Sloot, shown on June 4, knows where missing U.S. teen Natalie Holloway is buried, Peruvian police said. Dutch citizen Joran van der Sloot, shown on June 4, knows where missing U.S. teen Natalie Holloway is buried, Peruvian police said. (Karel Navarro/Associated Press)

The chief of Peru's criminal police says Dutch murder suspect Joran van der Sloot has told police that he knows the location of the body of missing U.S. teen Natalie Holloway.

Gen. Cesar Guardia told The Associated Press that van der Sloot "let slip that he knew the place where this person was buried."

But Guardia said the young Dutchman "would only testify [on the matter] before Aruba authorities."

Guardia said he didn't know how seriously to take van der Sloot's statement, given his history of dubious statements about the 2005 disappearance in Aruba of the Alabama teen.

Van der Sloot remains the lone suspect in Holloway's disappearance.

Guardia says the matter came up as van der Sloot confessed to killing 21-year-old Peruvian Stephany Flores in a Lima hotel room.

Peruvian Judge Juan Buendia early Friday ordered van der Sloot jailed on murder and robbery charges in the killing of Flores.