A suicide bomber blew himself up killing at least seven fighters from an Iraqi paramilitary group near the city of Samarra north of Baghdad on Thursday, the military said in a statement.
It said three other fighters were wounded in the attack, but gave no further details. There was no immediate claim for the attack.
Iraqi forces and mainly Shi’ite Muslim paramilitary groups are fighting a militia by Daesh group across parts of northern Iraq, two years after the group lost its sway over territory in the country.
The terrorists stage regular attacks against security forces but such a deadly one is rare.