A US soldier was killed and two others were wounded when a homemade bomb exploded in Baqouba, the U.S. military said Thursday. The attack Wednesday injured the three troops, two of whom were taken to a military hospital in Balad, where one died. The second soldier was in stable condition. Elsewhere, attackers killed two Iraqi women working as translators, employed by a unit of Halliburton, officials said Thursday. The two women, sisters, were driving home in a taxi in Basra late Wednesday when gunmen stopped the vehicle and opened fire on them, an occupation official in the southern city said, according to The AP. A day earlier, two US nationals were shot dead by attackers dressed in police uniforms. Authorities were investigating whether genuine police or attackers in disguise killed the American man and woman from the "Coalition Provisional Authority" (CPA) and their translator. **PHOTO CAPTION*** An Iraqi policeman checks the blood-stained front seat of the car in which two Iraqi women employed by a unit of Halliburton were shot dead in the southern port city of Basra. (AFP/Hani al-Obeidi)