Among the marchers were community leaders, politicians, church ministers and youth advocates.
Journalists estimated the crowd at over 200 that marched from the town's central market to the main government building, not far from the office of Prime Minister Mannaseh Sogavare.
One of Sogavare's daughters and a niece were among the pro-West Papua marchers, and it came a day after Sogavare announced that his government would not support the West Papua pro-independence's application for full membership of the MSG.