Robert Burns, AP National Security Writer

WASHINGTON (AP) — The Pentagon’s inspector general is investigating an allegation that the military command overseeing the anti-Islamic State campaign distorted or altered intelligence assessments to exaggerate progress against the militant group, a defense official said Wednesday.

The official was not authorized to discuss the probe publicly and so spoke on condition of anonymity.

The investigation was first disclosed by The New York Times. The paper reported that the investigation began after at least one civilian Defense Intelligence Agency analyst told authorities he had evidence that officials at U.S. Central Command were improperly reworking conclusions of assessments prepared for policy makers, including President Barack Obama.

Details of the allegations were not available. A spokeswoman for the inspector general’s office, Bridget Serchak, declined to comment.

Defense Secretary Ash Carter said Wednesday that he can’t speak about any potential inspector general report or investigation.

Asked if he believes he’s gotten skewed intelligence, he said: “I myself have tried to be very candid throughout about my own assessments of the counter-ISIL campaign. And I, therefore, have spent a lot of time making sure that I’m well-informed and I also expect candor on the part of everybody else in the department. That’s the only way we can know what we’re doing, how we’re doing and when.”

Carter said everyone from the president on down needs the most candid and accurate information “in order to make the kind of decisions that will lead most rapidly to victory.”

Carter spoke to reporters at Nellis Air Force Base in Nevada, where he watched a portion of the military exercise Red Flag, involving at least 100 fighter jets and other aircraft from the U.S., Israel, Jordan and Singapore.

Pentagon press secretary Peter Cook said he could not confirm the probe. The Pentagon typically does not publicly comment on the work of the inspector general’s office, which is an independent arm of the Defense Department.

White House press secretary Josh Earnest said Obama “places a premium” on getting unvarnished intelligence assessments and a range of views for policymakers.

“That yields, in the minds of our experts, the best, richest account of the facts on the ground,” Earnest said, adding that the president is confident he is receiving honest intelligence assessments.

A Pentagon spokesman, Navy Capt. Jeff Davis, said Pentagon and Central Command officials have been publicly candid about the difficulty of the war against the Islamic State. At times, however, they have painted a rosier picture than was reflected by developments on the ground.

Read more: