Weekly protests have taken place on Tuesdays and Fridays since February, but demonstrators appear eager to increase their street presence in the run up to the vote.
Algeria’s army said on Sunday it would not back any candidate in a presidential election set for December to choose a successor to Abdelaziz Bouteflika.
Since protesters forced veteran president Abdelaziz Bouteflika to quit in April, the standoff between them and the authorities has focused on new elections.
Algerian police have arrested Said Bouteflika, the youngest brother of former President Abdelaziz Bouteflika, and two former intelligence chiefs.
After weeks of mass protests, Algeria’s powerful army chief of staff called on Tuesday for a constitutional move that would see President Abdel Aziz Bouteflika declared unfit for office, signalling an end to his 20-year rule.