“He told me he was sleeping on the floor of the cell when a very large man came in and dumped cold water on him and began hitting him with a thick cable,” Uday al-Zaidi said in the TV interview.

He said his brother had told him that he was brutally beaten by several men and burned on his right ear by a cigarette. Uday al-Zaidi said that on Sunday his brother had bruises on his face, stitches on the bridge of his nose and swelling in his legs, arms and hands.

His jailers had periodically demanded that he state in a videotaped confession that he had been ordered to commit the act by enemies of the prime minister, Uday al-Zaidi said his brother had told him.

Uday al-Zaidi said his brother had said: “After the torture and the cold-water shower, I told them to bring me a blank sheet of paper and I would sign it, and they could write whatever they wanted. I am ready to say I am a terrorist or whatever you want.”

But Muntader al-Zaidi told his brother that the men had stopped beating him and did not force him to write or sign anything. The journalist said that a letter to the prime minister written by him from jail expressing regret for the attack had not been coerced, his brother said. It was unclear if this was the same letter Mr. Maliki referred to.

Uday al-Zaidi said his brother told him that he had bought the shoes  used  at a market in Cairo.

Meanwhile, leaders of the blocs in Parliament reached consensus on Sunday on a resolution that would allow troops from Britain, Australia and other countries to operate on Iraqi soil after the end of the year.

The resolution grants the Iraqi government the authority to set the terms for the presence of those troops, as long as they are to be out of Iraq by the end of July, said Taha Diraa, a lawmaker from the Islamic Supreme Council of Iraq, a leading Shiite party.