BAGHDAD, Iraq – The search for three missing American soldiers abducted after an attack south of Baghdad continued Monday as the al-Qaida group that claimed responsibility for the ambush said the soldiers would never be found. “What you are doing searching for your soldiers will be in vain and lead to nothing but fatigue and unrest,” said a statement posted on jihadist Web sites by the Islamic State of Iraq, an umbrella insurgent group that includes al-Qaida in Mesopotamia. “Your soldiers are in our hands. If you desire safety do not look for them.” The statement suggested the group was reveling in a manhunt that required a hefty deployment of resources at a time when Congress has pressed the American military to show progress here by September. About 4,000 American soldiers have been scouring the orchards and villages near Mahmudiya, a predominantly Sunni Arab farming town where the attack occurred early Saturday. A similar search involving 8,000 soldiers last June for two American soldiers captured in a town nearby forced commanders to cancel or delay operations in other parts of Iraq until after they were found dead four days later. On Monday, the American military reported the deaths of four American soldiers, a Marine and an airman throughout Iraq. Maj. Gen. William B. Caldwell IV, the top military spokesman in Baghdad, said the search effort would continue. Of the four American soldiers and one Iraqi soldier who died in the ambush, he said in a statement, one American was still unidentified. “We are using every asset and resource available to the United States and our Iraqi allies in these efforts,” he said. He confirmed American officials believe “al-Qaida or an affiliate group” engineered the abduction. He said it took 56 minutes for reinforcements to arrive at the scene of the ambush because the first and second units sent to assist discovered roadside bombs along the way. He also said that “elements of the same unit” that was attacked heard the initial explosion at 4:44 a.m., suggesting the two Humvees burned at the scene had not been traveling alone. Typically, American convoys include at least three vehicles. Two Iraqi security officials in the area, speaking on the condition of anonymity because they were not authorized to speak to reporters, said that five Humvees were on a rural road in predawn darkness when a roadside bomb exploded near the fourth, setting it ablaze. As gunmen stormed the fifth Humvee, abducting the three soldiers, the first three vehicles continued on. American military officials did not confirm the account. Procedures for handling attacks vary; some commanders tell units to drive through ambushes and call for backup. The statement from the Islamic State of Iraq was its second regarding Saturday’s attack, and it called the war in Iraq “a competition,” according to a translation by the Site Institute, which tracks jihadist Web sites. The abduction, it suggested, was an effort to even the score after Caldwell’s announcement earlier this month that American troops had killed Muharib Abdul Latif al-Jubouri, a senior leader of al-Qaida in Mesopotamia. It went on to cite the rape last year of a teenage girl by American troops near where the abduction occurred. A similar statement was issued during the search for the two American soldiers captured in June. It came from the Mujahedeen Shura Council, an umbrella insurgent group that was a precursor to the Islamic State of Iraq and included al-Qaida in Mesopotamia. It was released roughly a month after a four-day search led to the discovery of the soldiers’ bodies on a booby-trapped road a few miles from where they had been abducted. In a sign of what might be to come, that statement accompanied a video that showed the soldiers’ mutilated bodies wearing tattered green army uniforms. One of the soldiers in the video had been decapitated. The area south of Baghdad where both abductions of soldiers occurred, known as the “triangle of death,” has been perpetually difficult for the American military to control. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!