A controversial report on the CIA's "enhanced interrogation" program alleges that the spy agency misled Congress over the scope of the operation and techniques involved, a source familiar with the Senate review told Fox News.
The report, which has not yet been publicly released, comes from the Senate Intelligence Committee.
The committee voted in early April to send a 480-page summary to the Executive Branch for declassification.
Details of those documents began to trickle out Friday, initially with a McClatchy news service report that published what it said are the review's 20 findings. It reportedly concludes that the "enhanced interrogation techniques" failed to produce valuable intelligence; the CIA misled the Bush administration, Congress and the public about the value of the harsh treatment; the agency employed unauthorized techniques on detainees and improperly detained others; and it never properly evaluated its own actions.
Both the CIA's interrogation techniques and confinement conditions "were brutal and far worse than the agency communicated to policymakers," it said.
Speaking to Fox News, a CIA spokesman said of the report: "Given the report remains classified, we are unable to comment."
The spokesman said the agency, with others, would "carry out an expeditious classification review" and noted that the CIA response to a 2012 version "found several areas" where they agreed, and disagreed.
U.S. officials are also critical of the leaks, which they say are piecemeal and not necessarily an accurate representation of the findings.
The reported findings are consistent with what senators have detailed about the investigation since its 2009 inception and with what numerous news reports, human rights organizations and various governmental and non-governmental studies have suggested in the decade since the CIA's program started to coming to light. President Obama has likened the harsh interrogations to torture, but the spy agency defends its actions and says much in the Senate committee's report is inaccurate.
The committee voted last week to declassify the summary and conclusions of the 6,600-page review and is now waiting for the Obama administration to censor material sensitive to national security.
The panel's chairwoman said an investigation into how the findings were published was underway. The two pages of findings published by McClatchy did not include the names of any U.S. government employees or terror detainees, locations of secret CIA prisons or anything else that might threaten national security. They also did not indicate how or why the committee reached its conclusions.
"If someone distributed any part of this classified report, they broke the law and should be prosecuted," said Sen. Dianne Feinstein, D-Calif. "The committee is investigating this unauthorized disclosure, and I intend to refer the matter to the Department of Justice."
Fox News' Catherine Herridge and The Associated Press contributed to this report.