Police in Ethiopia have discovered a mass grave containing the bodies of some 200 people in the eastern part of the country.The discovery was made during an investigation into Abdi Mohammed, the former president of the border region of Somali.Mohammed is suspected of human rights violations and of being connected to a special police force active in the region that is known to have committed violent acts, state-affiliated broadcaster Fana reported Thursday. He is currently in detention. The bodies will be exhumed during the next 14 days, police said. It is not yet clear where the people were from or what happened to them. Ethiopian officials fear that hundreds of people were killed during clashes between several ethnic groups in the eastern border regions in early August.