The disquieting drumbeat of guerrilla-style attacks and sabotage deepened in Iraq, with a U.S. soldier killed in an ambush, another shot in the neck and an 11-year-old Iraqi boy slain by American troops. The latest violence occurred just after 11 p.m. Friday, when attackers fired on a U.S. convoy in the predominantly Shiite neighborhood of Thawra of northeast Baghdad. One American soldier was killed and four were wounded, military spokesman Sgt. Patrick Compton said. A civilian Iraqi interpreter was also hurt, he said. Witnesses said that unidentified attackers launched rockets destroying US armored vehicle in Fallujah, but no further details were given from US official side. The torrent of attacks and ever-harsher U.S. crackdowns is sparking frustration on both sides. Since Thursday, at least three U.S. soldiers have been killed, with a fourth dying in a non-combat accident. Two U.S. soldiers were still missing Saturday, four days after their apparent abduction from a guard post north of the capital. Saboteurs have also attacked Baghdad's power grid and oil pipelines, foiling coalition efforts to restore basic services like water and electricity as temperatures climb as high as 117 Fahrenheit. American military officials say the daily grind of ambushes is beginning to affect their efforts at reconstruction. The daily bloodshed has overshadowed the progress made since the end of the war May 1. Iraq's vital oil industry has begun pumping oil again, if only at a fraction of its prewar output, and will bring much-needed cash into state coffers. Police and court systems are also coming back on line, providing hope for improved law and order despite an overwhelming crime wave. Even something as simple as an evening concert is seen as a victory in Baghdad, an occupied city whose darkened nights have become roaming grounds for bandits, and whose frustrated residents have largely been living by candlelight. At least 60 U.S. troops have died in Iraq since major combat was declared over May 1, including at least 21 in attacks. **PHOTO CAPTION*** Iraqis look at the burnt out cabin of a US military transporter carrying other military vehicles in Yussufiyah, 20 kms south of Baghdad, following a rocket propelled grenade (RPG) attack. (AFP/Marwan Naamani)