At least twelve people died on Wednesday in two suicide car bomb attacks in the city of Bouira, the Algerian Interior Ministry and local authorities reported.

Two suicide attackers also died.

In one attack, a suicide bomber drove his car into a military administration office in Bouira, 120 kilometres east of Algiers.

In the second bombing, a suicide attacker drove his car towards a hotel, but at the last moment diverted it to smash into a bus before exploding.

At least 15 passengers were wounded on the bus and four military personnel were wounded in the other attack, down from an earlier estimate that at least 31 persons were wounded.

Reports citing security sources said that those killed near the hotel were Algerian construction workers employed by the Canadian company SNS Lavalin.

The attack comes a day after 43 people were killed and 45 wounded in a suicide car bombing in Issers, 60 kilometres east of Algiers.

The attacker drove a bomb-laden car into the main entrance of the school where police academy candidates were gathered.

The latest series of terror bombings began on Sunday when 12 people, including 11 soldiers and one civilian - were killed when suspected Islamist terrorists attacked a military convoy near the coastal town of Skikda, 350 kilometres east of Algiers.

In a reaction to the latest attacks, the Algerian government said it would "fight with firm determination for the elimination of terrorism," but at the same time Algiers would "not deviate from the path of national reconciliation."

In Brussels, the European Union condemned the new terror attacks and reiterated its support for Algerian authorities in their battle against terrorism.

The attacks also drew condemnation from the United Nations and world leaders.

"The secretary general extends his condolences to the people of Algeria and in particular, to the families of the victims," UN spokeswoman Marie Okabe said on behalf of Secretary General Ban Ki- moon.

Iranian Foreign Ministry Spokesman Hassan Ghashghavi termed the attacks and killing of innocent people as "inhuman and totally unacceptable," ISNA news agency reported.