Islamic State militants attacked Iraqi federal on the road between Kirkuk and Erbil near Kloor village in Pirde (Altun Kopri) northwest of Kirkuk.
Three members of the federal police were killed and two others were wounded in the attack which took place late on Monday, May 6th.
Iraqi federal police unit are undertaking security responsibilities for the surrounding areas of Kirkuk.
According to sources, security forces launched a clearing operation in the nearby mountainous area in search of the assailants.
Pirde (Altun Kopri) is located some 40 kilometers northwest of Kirkuk.