WASHINGTON: The United States rejected Monday the findings of a Pakistani probe into NATO air strikes that killed 24 Pakistani soldiers in late November, saying the investigation ignored the fact that "mistakes" were made on both sides.

At a press briefing, Pentagon spokesman John Kirby said the Pakistani army had officially delivered during the weekend a copy of the report conducted by Islamabad on the November 26 strikes against a Pakistani border post.

"The statement that this was an unprovoked attack by US forces is simply false," said Navy Captain Kirby. "It was not an unprovoked attack," he said. "There were errors made by both sides here."

Underscoring its criticism of the NATO force in Afghanistan, the Pakistani military rejected Monday US efforts to apportion some of the blame to Pakistan as "unwarranted and unacceptable.