Indonesian troops have shot dead another eight suspected separatist rebels in Aceh province, the military said.

Troops shot dead five men believed to be Free Aceh Movement (GAM) guerrillas during a clash at Meukek in South Aceh district on Wednesday, said military spokesman Ahmad Yani Basuki. A marine was shot and wounded in the 30-minute clash, he added.

Another rebel was shot dead at Mon Layu in Bireuen district later the same day, Basuki said. Troops shot dead a guerrilla at Mutiara Timur in Pidie district.

Troops also shot another rebel dead during a clash at Matang Jane in Aceh Tamiang district on Wednesday while a civilian was killed by a stray bullet, Basuki said.

Two men believed to be GAM rebels late Tuesday shot dead a former village chief at Beuringan in North Aceh district, the spokesman said.

The military's latest figures show a total of 630 rebels killed since the armed forces on May 19 launched a massive operation to crush GAM. The rebels say many of those killed are civilians.

The military says more than 1,300 rebels have been arrested or surrendered during the same period while the army and police lost a total of 53 men.

GAM has been fighting for independence since 1976. More than 10,000 people have been killed in the resource-rich province on Sumatra island since then.