Baghdad worried about sectarianism in Shiite forces , sources tell CNN . Report : Militants left a message , `` This is the fate of any prostitution '' Residents say Iraqi group carried out attack , but it denies having forces in Baghdad . In Salaheddin province , fighting between militants from the Islamic State of Iraq and Syria , or ISIS , and Iraqi forces backed by Sunni al-Jubouri tribesmen broke out late Saturday in Dhuluiya , police officials and a tribal representative told CNN . Car bombings kill four in Baghdad ; roadside bomb targets a Shiite police convoy .
Baghdad worried about sectarianism in Shiite forces , sources tell CNN . Report : Militants left a message , `` This is the fate of any prostitution '' Residents say Iraqi group carried out attack , but it denies having forces in Baghdad . Car bombings kill four in Baghdad ; roadside bomb targets a Shiite police convoy .