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 . Pentagon press secretary Rear Adm. John Kirby said the United States has `` not moved to an advisory capacity at this point . '' 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 : 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 .