WASHINGTON – The Senate Intelligence Committee has opened an investigation into how McClatchy obtained the classified conclusions of a report into the CIA’s use of waterboarding and other harsh interrogation tactics, the panel’s chairwoman said Friday.

Sen. Dianne Feinstein, D-Calif., said she was also referring the case to the Justice Department for investigation.

Feinstein issued her statement a day after McClatchy reported on the 20 major conclusions of the committee’s four-year, $40 million investigation into the Bush-era CIA detention and interrogation program.