Tunis - Tunisia's Interior Ministry says that a band of militants ambushed security forces, killing four and wounding another four in two attacks.
The ministry statement said early on Sunday militants shot at a vehicle driving along a road in the northwest of the country near Jendouba, killing a prison official, a civilian and wounding two others.
The group then ambushed a patrol sent to investigate the attack, killing two members of the National Guard and wounding two others.
Tunisia is battling armed radical Islamist groups with links to al-Qaeda.
Last month, Tunisian forces killed seven militants in operations around the capital.