A former Romanian president has acknowledged approving the CIA's request for a site in Romania, but said he would have refused had he known how it would be used.

Ion Iliescu, president from 2000 to 2004, suggested he believed Romania had hosted CIA "black sites" — prisons outside the U.S. where suspected terrorists were held and subjected to harsh interrogation.

Romanian authorities had long denied reports they hosted a CIA secret prison, but Iliescu said last week he approved a request for a site in 2002-2003.

He wrote on this blog Monday that "I would surely have taken another decision" if he had known what the CIA was doing.

He added: "We assumed commitments.....in Romania's interests. For all of these there is a cost."