Twenty one people, six of them policemen, were injured in a suicide car bomb attack early Sunday in the town of Tizi Ouzou in Algeria's Kabylie region, the Interior Ministry said.
The blast happened at about 5 a.m. (0400 GMT) in Tizi Ouzou, the main town in the mountainous Berber-speaking Kabylie region of northern Algeria, a ministry statement carried by the official APS news agency said.
There was no immediate claim of responsibility. Previous such attacks have been claimed by a group which calls itself al Qaeda in the Islamic Maghreb and has its main base in Kabylie.
One of the attacks included twin suicide bombings that targeted U.N. offices and a court building in Algiers in December 2007, killing 41 people, 17 of them United Nations staff.
Algeria is emerging from more than a decade of conflict that began when in 1992 the military-backed government scrapped legislative elections a radical Islamic party was poised to win.
Authorities had feared an Iranian style revolution. About 150,000 people have been killed during the ensuing violence.
The bloodshed has subsided in recent years and in 2006 the government freed more than 2,000 former Islamist guerrillas under an amnesty designed to put an end to the conflict.