Updated

Tunisia's presidential spokesman says gunmen ambushed an army unit patrolling in a mountainous region near the border with Algeria, killing eight soldiers.

Adnan Mancer told The Associated Press that the attack took place Monday on Jebel Chaambi, Tunisia's tallest mountain and a suspected hideout of al-Qaida-linked militants.

The army has been searching the mountainous region near the Algerian frontier since a patrol was hit by a roadside bomb in April.

On June 24, the army declared the mountain cleared of extremists in a campaign that cost three lives and left 27 soldiers injured.

In the course of its operation, the army discovered evidence suggesting an al-Qaida-linked movement supported by the local population had set up training camps in the area.