Insurgents on Sunday killed at least 14 Iraqis, nine of them in Baghdad, security officials said. Four people were killed and five wounded when several mortars exploded near a car service company, Al-Rasheed, in BaghdadÂ’s eastern Karada district, a security official said. Two bodyguards of Hamed al-Shammari, a senior official in the Education Ministry, were killed when a roadside bomb struck his convoy in Baghdad. Two civilians were killed when another roadside bomb exploded near central BaghdadÂ’s university of technology. In another attack, gunmen shot dead a doctor from BaghdadÂ’s Yarmuk hospital. In Hilla, south of Baghdad, a car bomb killed one woman in a market. In Diwaniyah city one Iraqi soldier was killed by gunmen, while another soldier was killed in a roadside bombing east of the Shia city of Kut. Two bodies were also found in the Tigris River near Kut. In a related development, a senior Iraqi official said on Sunday that three Iraqi army brigades from the Kurdish north and the Shia south would be brought in for a security crackdown in Baghdad. Meanwhile, US military losses in Iraq touched 3,000, according to latest figures on Sunday, amid reports that another 20,000 troops are to be rushed to Baghdad to stabilise the violence-wracked capital.