U.S. worried about sectarianism in Iraqi forces , sources tell CNN . Report : ISIL left a message , ` ` This is the last of any Iraqi '' Sources say Shiite group carried out attack , but it denies having forces in Baghdad . Car bombings kill people in Baghdad ; a bomb targets a Kurdish police station .
U.S. worried about sectarianism in Iraqi forces , sources tell CNN . Report : Militants left a message , `` This is the fate of any prostitution '' Residents say Shiite group carried out attack , but it denies having forces in Baghdad . Car bombings kill two in Baghdad ; roadside bomb targets a Kurdish police convoy .