Salahuddin (IraqiNews.com) Three security personnel of the pr-government paramilitary troops were killed in a bomb blast in Salahuddin province, a security source said on Friday.Speaking to Alghad Press, the source said, "three personnel of al-Hashd al-Shaabi (Popular Mobilization Forces) were killed as a bomb went off in Tikrit, near al-Therthar lake in Salahuddin."