Indonesian authorities ramped up efforts to find 37 people feared buried by the collapse of an illegal gold mine on the island of Sulawesi that killed at least four people.
China's Dalian Commodity Exchange said on Tuesday it would allow individual foreign investors to trade iron ore futures on the bourse starting Wednesday.
The miner said it was still investigating the incident, as was the state's mines safety inspector, which involved a personnel carrier and a grading vehicle last Wednesday.
The 1,000-km (620-mile) rail line is used by miners including Glencore, MMG Ltd and South 32 to carry zinc and lead concentrate from the Mt Isa region.