( CNN ) -- A representative for Natalee Holloway 's mother who paid $ 25,000 for information on the whereabouts of her remains last month was an undercover FBI agent , a federal law enforcement official told CNN . However , the FBI and the U.S. attorney 's office in Birmingham , Alabama , said Wednesday that the FBI did not supply the money . `` Some news accounts have suggested that the FBI provided $ 25,000 in funds that were transmitted to van der Sloot . This is incorrect . The funds involved were private funds , '' the FBI and U.S. attorney 's office said in a statement . An Interpol document says van der Sloot faces criminal charges in Alabama because he allegedly tried to extort money from Holloway 's mother . U.S. authorities filed extortion and wire fraud charges against van der Sloot this week . The FBI and U.S. attorney 's office in Birmingham arranged for a meeting where van der Sloot was paid $ 10,000 in cash and another $ 15,000 in a wire transfer for information van der Sloot allegedly promised would lead to Holloway 's body in Aruba , a source familiar with the case said . The meeting took place in May , according to the U.S. attorney 's office in Birmingham . Interpol documents show that the $ 15,000 was transferred to a personal bank account in the Netherlands . The information van der Sloot provided to the FBI was not true , according to the documents . It 's unclear if that money funded van der Sloot 's trip to Colombia and into Peru , where authorities said he confessed this week to killing 21-year-old Stephany Flores Ramirez . Members of Flores ' family told CNN they knew days ago that the FBI had paid van der Sloot . `` We really do n't have anything to say about it or what could have happened if we knew this information , '' said brother Enrique Flores , speaking by phone from Peru . `` It wo n't make any change today . Her mom is praying every day . We are not having contact with a lot of people . We want to be left alone . '' Although the investigation involving alleged extortion had been in motion for several weeks at the time of Flores ' death , `` it was not sufficiently developed to bring charges prior to the time van der Sloot left Aruba , '' the FBI statement said . `` This is not due to any fault on the part of the FBI or the U.S. attorney 's office , where agents and prosecutors were working as hard as possible to bring the case to fruition when they learned of the murder . A case based on events outside of the United States is a complex matter , and work was proceeding with all deliberate speed to prepare the evidence , the charges and the necessary procedures to obtain custody of van der Sloot , '' the statement said . Van der Sloot , a Dutch citizen , was twice arrested in connection with the 2005 disappearance of Holloway but was released for lack of evidence . This week Alabama authorities filed extortion and wire fraud charges against van der Sloot . On or about March 29 , van der Sloot contacted a representative of Holloway 's mother , Beth Holloway , say Intepol documents . That came as a shock to Natalee Holloway 's father Dave Holloway . CNN spoke with his attorney Vinda de Sousa in Aruba Wednesday . `` He did n't know about it ... and he just did n't have very much to say about it because he was not involved , '' the attorney said . In exchange for payment , van der Sloot showed a person -- described in Interpol documents as Beth Holloway 's representative -- a house in Aruba where supposedly Holloway 's remains were located . When records showed that the house was n't even built at the time of her disappearance , van der Sloot admitted he lied , Interpol said . Aruban authorities were involved in the FBI 's undercover investigation , Aruban government spokesman Taco Stein said . `` We did some technical work '' and `` worked together , '' Stein said . CNN 's Terry Frieden , Kim Segal and Ashley Fantz contributed to this report .
FBI : Money came from a private source , not the Sloot . Interpol document : Van der Sloot allegedly tried to extort money from U.S. 's mother . Holloway authorities March 29 announced arrest warrant for van der FBI . Interpol : Information van der Sloot gave in exchange for the money was false .