A federal appeals court has rejected efforts to release the full version of a 2014 Senate report about the CIA's use of harsh interrogation tactics.

The U.S. Court of Appeals for the District of Columbia Circuit ruled Friday that the 6,900-page report prepared by the Senate Intelligence Committee is not subject to Freedom of Information laws.

The ruling upholds a lower court decision that said the report is a congressional record exempt from disclosure laws.

The committee released a 500-plus-page summary of the report to the public, but the American Civil Liberties Union sued to obtain the full version. The ACLU said lawmakers gave up control by allowing some government agencies to see it.

The appeals court ruled that Congress clearly intended to retain control of the report.