About 200 students have urged monitors overseeing a peace pact between the Indonesian government and Aceh separatist rebels to investigate the shooting of two brothers.

Unidentified gunmen shot the two brothers who were riding a motorcycle in Aceh Besar district on Saturday, killing one of them and critically wounding the other.

Students picketed the office of the Joint Security Committee in the provincial capital Banda Aceh to vent their anger. They urged the committee to find the perpetrators of the attack.

The committee was set up following the signing of a ceasefire agreement between Jakarta and the separatist Free Aceh Movement on December 9.