[JURIST] Polish Prime Minister Kazimierz Marcinkiewicz [official profile] said Saturday in a television interview that he will order an investigation into reports that the CIA ran a secret detention facility in Poland. Allegations have been circulating in press reports and human rights group statements for over a month, and were most recently detailed in the Warsaw daily Gazeta Wyborcza [newspaper website], which Friday cited Human Rights Watch claims that Poland hosted the largest CIA facilty in Europe [JURIST report], housing roughly 100 prisoners. The Polish government has denied that any such prison existed; as recently as Tuesday, a spokesman for the Polish Justice Minister said the goverment would not launch an investigation [JURIST report] without further evidence. Marcinkiewicz said Saturday that a probe was necessary as the matter affected Poland's national security. Reuters has more.