Warsaw probes secret CIA prison allegation

Warsaw: The prosecutor's office is investigating allegations that there was a CIA prison in Poland where Al Qaida suspects were questioned and guards might have used methods close to torture, the prime minister's top adviser said on Friday.

Polish media reported earlier on Friday that a classified note written by the Polish secret service had proved the existence of a US Central Intelligence Agency base in Poland.

"I am not familiar with such a note and I don't think Prime Minister Donald Tusk is either," Slawomir Nowak, who heads Tusk's political office, said in an interview with Tok FM radio.

"But the premier asked the justice minister to clarify this matter and the country's prosecutor's office is investigating the potential existence of the CIA prison."