WASHINGTON (AP) — The State Department is seeking the declassification of a 10-month-old letter expressing its concerns about a controversial Senate torture review, U.S. officials said Wednesday.

The classified letter came to light after the Senate Intelligence Committee voted 11-3 last week to release parts of its 6,600-page investigation of the CIA’s waterboarding and “enhanced interrogation techniques” on terrorist suspects after the Sept. 11 attacks.