WARSAW  - Poland’s prosecutors said they had extended to February an ongoing probe into the country’s alleged hosting of a CIA secret prison where top Qaeda terror suspects were tortured. Prosecutors launched an investigation in Aug 2008 into accusations that Warsaw had allowed the CIA to operate the prison from 2002-2003 in the north-eastern village of Kiejkuty to interrogate suspects in the 9/11 attacks. Maciej Kujawski, a spokesman for the prosecutor general, refused to explain the reasons behind the extension. In March, former Polish spy chief Zbigniew Siemiatkowski said he had been charged in connection with the probe, but prosecutors working on it refused to confirm his claim.