Five more people, including two separatist rebels, have been killed in Indonesia's troubled Aceh province, the military and residents said.

Soldiers shot dead a suspected member of the separatist Free Aceh Movement (GAM) in a gunfight at Indrajaya in Pidie district on Friday, said local military chief Colonel Supartodi.

Another GAM rebel was killed by troops in an encounter near the provincial capital Banda Aceh Friday, said an Aceh military spokesman, Major Ertoto, on Saturday.

In another incident, a gunman on motorcycle killed a businessman at his shop in the city of Lhokseumawe in North Aceh on Friday night, residents said.

Also on Friday, two bodies bearing gunshot wounds and torture marks were found at Simpang Ulim in East Aceh, said a local GAM spokesman, Ishak Daud.

Violence between GAM, which has been fighting for a free Islamic state in Aceh since 1976, and government forces has claimed more than 10,000 lives, including more than 500 this year alone.

The rebels and the government have held a series of peace talks in Switzerland over the past few years but truces have always broken down.