Some 30 people were said to be injured in the attack. The blast occurred in the Mediterranean port city of Dellys.
It came two days after a suicide bombing in the eastern town of Batna killed at least 20 people shortly before a scheduled visit by Algerian President Abdelaziz Bouteflika.
Bouteflika blamed that attack on Islamist militants trying to undermine his policy of national reconciliation.
(AP, AFP)
