Bosnian forensic experts started to excavate a mass grave Thursday in Kamenica near the eastern Bosnian Serb town of Zvornik, the Commission on Missing People confirmed.
Murat Hurtic from the commission said that some 30 to 40 bodies were uncovered after the first layers of soil were removed from the top of the grave, dpa reported.
The victims were Bosnian Muslims killed in the massacre in the former eastern Bosnian Muslim enclave of Srebrenica during the 1992- 95 war in Bosnia-Herzegovina.
Bosnian Serb troops massacred up to 8,000 Bosnian Muslim men after capturing the area on July 11, 1995.
Hurtic also confirmed that the new mass grave was the 10th mass grave discovered at the Kamenica site.
Thousands of bodies of the victims of the Srebrenica massacre have so far been exhumed from mass graves in the Kamenica valley.
Forensic experts believe more mass graves will be found in the valley.