Indonesia has ordered a halt in operations at a giant US-owned mine while inspectors probe a fatal tunnel collapse…in a stoppage that could last two months. On May 14, a tunnel caved in at Freeport-McMoRan's gold and copper Grasberg mine in Indonesia's easternmost Papua province, killing 28 of 38 workers undergoing safety training. The company shut down all operational activities at the mine for two weeks following the accident, but on Tuesday resumed some milling and open-pit activities. Indonesia's chief mine inspector Syawaluddin Lubis said…the energy and resources ministry had sent a letter to Freeport earlier this week instructing them to carry out only administrative and maintenance work…"We have responded (to the ministry) with a letter explaining the activities undertaken so far and requesting approval for the resumption of operations," Freeport Indonesia spokeswoman Daisy Primayanti said…Freeport has also said it will conduct its own probe.