Eight suspected members of the SPLM in Opposition forces are being held by Western Bahr al Ghazal State authorities.
They were paraded before journalists in Wau town yesterday, including a 12-year-old boy.
The SPLA commander of Division Five, Maj-Gen David Manyok, says they were captured during a night patrol in Namatina area.
The state governor, Rizik zecharia, says the youth will be investigated.
However, the SPLM in Opposition has denied that any of its members have been arrested by the government.