WARSAW, Poland — The U.S. Senate's report on CIA practices could help conclude a probe into whether Poland hosted a secret CIA detention site, Prime Minister Ewa Kopacz said Tuesday.

A summary of the 6,700-page report released by the Senate Intelligence Committee on Tuesday condemned the CIA for inflicting suffering beyond its limits on detainees in secret prisons. It didn't identify the host countries, but described the harsh treatment of prisoners after the Sept. 11 attacks.

Poland, a staunch U.S. ally, has been investigating allegations since 2008 that it hosted a secret prison from 2002-2003. Three terror suspects were given victim status in the probe. The prime minister at the time, Leszek Miller, has denied the existence of a secret CIA prison in Poland.

The spokesman for prosecutors in the investigation, Piotr Kosmaty, said Tuesday they will want to see the report as they seek evidence.

Former CIA officials have told The Associated Press that a prison in Poland operated from December 2002 until the autumn of 2003. Human rights groups believe about eight terror suspects were held in Poland, including Khalid Sheikh Mohammed, the self-proclaimed mastermind of the Sept. 11 attacks.

Kopacz said that prosecutors will assess the value of the report for their investigation.

"I am hoping for a quick conclusion of the matter," Kopacz said.

Defense Minister Tomasz Siemoniak said that publication of the report will undermine the trust that its allies have in the U.S.

President Barack Obama called Kopacz on Monday and expressed hope that the publication will have no negative effects on bilateral ties.