The extremists raided a unit of the Shi'ite militias in the village of Shafiq, in Khanaqin, leaving three militiamen wounded, Kurdistan 24 cited its correspondent in the area.
The Iraqi army and militiamen were jointly able to rescue the injured people and take them to the hospital in Khanaqin, the report added.
The Islamic State has reportedly started to regroup itself in the disputed territories once again.
The jihadist group's sleeper cells are still active and they conduct terrorist activities against both the security forces and civilians from time to time.
Reporter's code: 50101