( CNN ) -- Romania insisted Wednesday there was no evidence it had hosted secret CIA prisons as part of the United States ' `` global war on terror '' after September 11 , 2001 . The country `` has no information whatsoever showing that there existed secret CIA detention centers on its territory , '' the Foreign Ministry told CNN . Two investigations also failed to find any evidence that the CIA used Romanian airports for `` rendition , '' the process in which detainees in American custody are transported for questioning to other countries where prohibitions on torture are not as strict and American laws do n't apply . The Romanian denial comes in response to a plea from the human rights commissioner for the Council of Europe that countries that have hosted secret CIA prisons come clean . Thomas Hammarberg said Romania , Poland and Lithuania were among at least seven countries that hosted `` black sites '' for `` enhanced interrogation '' during the `` war on terror . '' `` Darkness still enshrouds those who authorized and ran the black sites on European territories , '' he said . `` The full truth must now be established and guarantees given that such forms of co-operation will never be repeated . '' CIA officials have acknowledged the rendition program , but refused to discuss details and denied violating any laws . Efforts to challenge the agency and get details about it in U.S. courts have been turned aside . Hammarberg said the CIA had held `` high-value detainees , '' including alleged 9/11 mastermind Khalid Sheikh Mohammed , in Poland between 2002 and 2003 . The Polish site closed and a new secret prison opened in Romania in 2003 , Hammarberg charged , and existed for more than two years . Lithuania also hosted two sites , he said . Polish prosecutors and Lithuanian lawmakers have investigated the phenomenon , but Romania has shown `` little genuine will to uncover the whole truth , '' Hammarberg charged . `` Effective investigations are imperative and long overdue , '' he said . Poland 's Ministry of Foreign Affairs said it would not comment while prosecutors in the country are still investigating . Lithuania has not responded to CNN questions about the issue . Hammarberg 's statement comes as documents seized from Moammar Gadhafi 's compound in Libya shed light on the program of extraordinary rendition . CNN saw a March 6 , 2004 , CIA letter to Libyan officials about Abdel Hakim Belhaj , a former jihadist with the Libyan Islamic Fighting Group and now a senior commander in the anti-Gadhafi forces . It concerned the Malaysian government 's arrest of Abdullah al-Sadiq , Belhaj 's nom de guerre for his rendition . A CIA officer said the man and his pregnant wife were being placed on a commercial flight from Kuala Lumpur , Malaysia , to London via Bangkok and then on to Libya . `` We are planning to arrange to take control of the pair in Bangkok and place them on our aircraft for a flight to your country , '' the officer wrote . Belhaj fought for the Taliban in Afghanistan , but left after their fall in 2001 and was arrested in Malaysia in 2004 . After some questioning by the CIA , he was sent back to Libya and jailed . The Council of Europe is a 47-member group that promotes democracy and human rights on the continent . CNN 's Jo Shelley contributed to this report .
Romania rejects accusations by the Council of Europe that it hosted jails for `` enhanced interrogation '' Human Rights Commission 's Thomas Hammarberg says `` the full truth '' must be established . CIA officials have acknowledged the extraordinary rendition program but refuse to disclose details . Records emerging from Moammar Gadhafi 's regime in Libya contain potential revelations .