Seven U.S. troops have been killed by improvised explosive devices in Iraq, while a Marine in Iraq, and a soldier in Afghanistan, have died in gunbattles.

Two roadside bombs killed five U.S.soldiers south of Baghdad Saturday. A servicemember was killed Friday in Afghanistan's Uruzgan province, while a Marine died Thursday in Anbar province. Two more soldiers were killed by separate roadside bombings in Iraq Wednesday.

Four soldiers were killed in one incident when their patrol vehicle struck an improvised explosive device south of Baghdad Saturday, the U.S. military said in a statement.

In a separate statement the military said a fifth soldier had been killed Saturday in another roadside bombing in the same region.

The U.S. servicemember killed in Afghanistan died followed a small arms fire attack on the soldier's patrol which was investigating a cache near Deh Rawod, in the country's Uruzgan provinceon Friday.

A Marine assigned to Regimental Combat Team 7 died due to enemy action while operating in Anbar province Thursday. No further details were available.

Pfc. Patrick A. Tinnell, 25, of Lake Havasu City, Ariz., was killed in As Siniyah, Iraq, on Wednesday, when a vehicle-borne improvised explosive device detonated during a dismounted combat patrol. Tinnell was assigned to the 1st Battalion, 187th Infantry Regiment, 3rd Brigade Combat Team, 101st Airborne Division (Air Assault), Fort Campbell, Ky.

Army Pfc. Robert J. Settle, 25, of Owensboro, Ky., died in Taji, Wednesday when an improvised explosive device detonated near his Humvee. Settle was assigned to the 1st Battalion, 66th Armored Regiment, 1st Brigade Combat Team, 4th Infantry Division, Fort Hood, Texas.

Additionally the military released the name of of Army Capt. Ian P. Weikel, 31, of Colorado, who died in Balad, on Tuesday from injuries sustained when an improvised explosive device detonated near his Humvee in Baghdad. Weikel was assigned to the 10th Cavalry Regiment, 1st Brigade Combat Team, 4th Infantry Division, Fort Hood.

The body of a U.S. sailor was also recovered during the week following an accident earlier in the month when a truck the sailor was riding in rolled over in a flash floor near Asad, Iraq. He was officially listed as missing after the accident. The military said he was Navy Petty Officer 3rd Class Marcques J. Nettles, 22, of Beaverton, Ore., He was assigned to 1st Combat Logistics Battalion, 1st Marine Logistics Group, 1st Marine Expeditionary Force, Camp Pendleton, Calif.

Elsewhere six off-duty Iraqi soldiers were captured and shot execution-style outside a restaurant in northern Iraq on Friday, police said.

The soldiers were just leaving the restaurant after lunch there when they were taken into custody by a group of unidentified gunmen waiting outside, said police Capt Arkan Ali. The gunmen took their captives to a nearby street, lined them up and shot them to death, Ali said.

Pakistan's The Daily Times said the attack occurred in the industrial city of Beiji, where the soldiers had stopped en-route to their military base in Mosul.

Meanwhile, five Iraqi policemen and two civilians were killed on Friday, and the bullet-ridden bodies of four Iraqis were found.

In Khalis, 80 kilometres north of Baghdad, a drive-by shooting killed a policeman walking on a street of the city, police said.

In Mosul, four policemen were killed when their patrol hit a roadside bomb, police said. Two policemen and a bystander were wounded. Another roadside bomb targeted an Iraqi military patrol in Mosul, killing one civilian and injuring two soldiers and a nearby policeman, said police.

A Shia baker, Nadil Adel Ashor, was killed while leaving home for work by unidentified gunmen in a speeding car in Dora, southern Baghdad, said police 1st Lt Maitham Abdul-Razzaq.

Iraqi police found four bullet-riddled bodies in three different Sunni-Shia districts of the capital. Police said the identities of the victims and the motives behind the killings were not immediately known.