The five detainees at Guantanamo Bay charged with plotting the September 11, 2001 attacks have filed a document accepting responsibility for the deaths of nearly 3,000 people and expressing pride at their accomplishment, The New York Times reported late Monday.

The document, which the newspaper said may be released publicly on Tuesday, describes the five men as the "9/11 Shura Council," and says their actions were an offering to God, according to excerpts of the document read to a reporter by a government official, the report said.

The document is titled "The Islamic Response to the Government's Nine Accusations," the military judge at the U.S. Naval base said in a separate filing, obtained by the Times, that described the detainees' document.

The document was filed on behalf of the five men, including Khalid Sheik Mohammed, who has called himself the mastermind of the attacks.

Some of the men had said earlier that they planned the 2001 attacks and that they wanted to be martyrs. The reason for the new filing, which the report said reached the military court on March 5, was not clear. The brief court order describing the filing said the men sought no legal action.