BAGHDAD, Iraq, Aug. 28 (Reuters) - A soundman working for Reuters Television was shot dead Sunday in Baghdad, and a cameraman with him was wounded and then detained by United States soldiers. An Iraqi police report, read to Reuters by an Interior Ministry official, said the two had been shot by American forces.

A United States military spokesman, Lt. Col. Steven A. Boylan, said the incident was being investigated, and an official statement indicated that the Americans were responding to an attack on an Iraqi police convoy when the journalists were shot.

The uncle, left, and father of Waleed Khaled, a soundman killed Sunday in Baghdad, wept over his body.

The death brings to 66 the number of journalists and their aides killed in Iraq since the start of the invasion in 2003, said Reporters Without Borders, a Paris-based news media rights group. That surpasses the 63 journalists killed over 20 years of conflict in Vietnam, the group said.

The soundman, Waleed Khaled, 35, was struck by a bullet to the face and at least four to the chest as he drove to investigate a report from police sources of an incident involving police officers and gunmen in the Hay al-Adil district in western Baghdad.

Reuters colleagues who arrived shortly after the attack said that the wounded cameraman, Haider Kadhem, said, "I heard shooting, looked up and saw an American sniper on the roof of the shopping center."

He was detained by United States troops and remained in custody 12 hours later, despite requests by Reuters that he be freed to receive medical attention for a wound in his back.

Two Iraqi colleagues who arrived on the scene minutes after the shooting were detained, but soon released.

The United States military statement said: "Task Force Baghdad units responded to a terrorist attack on an Iraqi Police convoy around 11:20 a.m. Aug. 28 in central Baghdad, which killed and wounded several Iraqi police. One civilian was killed and another was wounded by small-arms fire during the attack.

"After discovering an abandoned car with explosives material, weapons and a cellphone, units began searching the area for the terror suspects who were believed to have fled on foot."

Mr. Khaled had worked for Reuters for two years. He is survived by a wife and daughter. David Schlesinger, Reuters global managing editor, said: "This tragic incident must immediately be investigated thoroughly and impartially."

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