Light violence claimed three lives, while seven people were injured.
In Baquba, a bomb killed one person and wounded two others. While an explosives expert was trying to defuse a separate bomb, it exploded and wounded three civilians.
A policeman was killed and two others were wounded when a bomb exploded in Tal Afar.
In Mosul, gunmen killed a government employee outside his station.
No casualties were reported during a clash near Amara.