Two small bombs went off early Friday on a road leading to a massive mine operated by Freeport-McMoRan Copper & Gold Inc. in eastern Indonesia and a third unexploded mortar round was found nearby, AP quoted police as saying. No one was injured and there was little damage. The near-simultaneous explosions targeted a bridge and a nearby security post 10 miles (16 kilometers) from the Grasberg mine in Papua province, said PT Freeport Indonesia spokesman, Mindo Pangaribuan, refusing to elaborate until the police probe was complete. «We can only say that the incident did not disturb our operations,» he said. «Things are running normally.» «An unidentified group was trying to attack Freeport's facilities,» said military Lt. Col. Tri Suseno, as more than a dozen members of the country's elite anti-terrorism unit arrived, discovering a third unexploded mortar under a bridge. Police chief Maj. Gen. Bagus Ekodanto said a little-known group calling itself the West Papua National Army had circulated pamphlets in recent days demanding the mine's closure, but that it was not yet clear if the events were related. «We're still investigating,» he said.