Baghdad, Iraq ? New images showing Iraqis abused by U.S. guards at Abu Ghraib prison three years ago threatened Wednesday to inflame public anger already running high over footage of British soldiers beating youths in southern Iraq.

Images of naked prisoners, some bloodied and lying on the floor, were taken about the same time as earlier photos that triggered a worldwide scandal and led to military trials and prison sentences for several lower-ranking American soldiers.

Many of the pictures broadcast Wednesday by Australia’s Special Broadcasting Service were more graphic than those previously published. One of the video clips depicted a group of naked men with bags over their heads standing together and masturbating. The network said they were forced to participate.

Some key Iraqi officials urged their countrymen to react calmly since the pictures were old and the offenders had been punished.

In the Middle East, where there have been widespread anti-Western protests recently over caricatures of the Prophet Muhammad, Al-Jazeera and Al-Arabiya TV aired some of the Australian station’s footage but refrained from using the most shocking and sexually explicit images. CNN also broadcast excerpts.

Iraq’s acting human rights minister, Nermine Othman, said she was “horrified” by the pictures and would study whether any action could be taken against those responsible.

“There will be two kinds of reactions from Iraqis,” she told The Associated Press. “One will be anger and others will feel sorry that they (SBS) didn’t give them to the Iraqi government to investigate. Why use them? Why show them? We have had enough suffering and we don’t want any more.”

Pentagon spokesman Bryan Whitman said the Defense Department believed the release of additional images of prisoner abuse was harmful and “could only further inflame and possibly incite unnecessary violence in the world.”

Whitman said he did not know whether the photos and video clips were among images the Pentagon has been withholding from public release since 2004.

But another defense official said Army officials had reviewed the photographs posted on the Sydney Morning Herald’s Web site and matched them to images that were among those turned over to military authorities in 2004 by a U.S. soldier.

The official, who spoke on condition of anonymity because he was not authorized to address the matter publicly, said the photos contained no new information about abuse.

Although the Abu Ghraib case was exhaustively reported here years ago, the new images could revive the issue of treatment of Iraqis by occupation forces, who face the ever-present threat of insurgent violence.