Gold price slumps as market awaits more data to gauge Fed decision
Traders also took stock of US Treasury Secretary Janet Yellen's warning that failure by Congress to raise the government's debt ceiling would trigger an "economic catastrophe".
Artisanal and small-scale mining can lead to commodities being mined, sold and purchased through unofficial channels and potentially financing criminal or terrorist organizations.
A pro-China propaganda campaign used fake social media accounts to try to stir up opposition, including protests, against mining firms that challenge China's business interests.