Around 100 people have now been killed in Algeria since the beginning of the Muslim fasting month of Ramadan, on November 27.
Five government soldiers were killed and another four injured Sunday when they were ambushed by an armed group in the Ouarsenis mountains, 200 kilometres (120 miles) southwest of the capital Algiers, El Khabar daily said.
One of the attackers was killed.
Also Sunday, two people were killed when armed suspected Islamic fundamentalists attacked a barracks in Kabylia, 100 kilometres (60 miles) east of Algiers.
The attackers set off a bomb before bursting into the barracks. A civilian was injured in the attack.
A policeman was shot and killed late Saturday by attackers in Bordj Menaiel, 70 kilometres (50 miles) southeast of Algiers, several papers reported.
In a separate attack near Bouira, 120 kilometres (70 miles) southeast of Algiers, a police officer and an ex-soldier were killed. A civilian was killed in the same attack.
A civilian guard was killed and another badly injured Saturday in an attack on Boumerdes, 50 kilometres (30 miles) east of Algiers.
Police on Saturday killed two armed Islamic fundamentalists in the same region.
Insurgency by fundamentalist groups has claimed at least 100,000 lives since they took up arms in 1992 after the army called off the second round of elections the Islamic Salvation Front was poised to win.
President Abdelaziz Bouteflika in July 1999 offered a six-month amnesty on specific conditions to armed groups, which led hundreds of fighters to turn themselves in.
He has ordered the security forces to crack down mercilessly on those who failed to take up the offer.