Two fighters were killed on Friday by security forces in the Boumerdes region east of the capital Algiers, officials said on Saturday without giving any further details.
Newspapers reported that a security official in the same region was killed on Thursday, while two fighters were shot dead by security forces in separate incidents in the Jijel and Skikda regions, both east of Algiers.
The reports came as the former French colony entered the final days of campaigning for the 8 April presidential election.
The deaths brought the toll to 70 killed in unrest since the start of March.
Fighting erupted in Algeria after the cancellation in January 1992 of the second round of elections an Islamist party was poised to win. More than 100,000 people have died in the violence since then.