Bloomberg reported that investors had withdrawn more than $US1 billion this month from exchange-traded funds tracking industrial and precious metals.

Platinum also dropped while silver registered its longest decline since March 2014.

Traders have given odds of 66% the US Federal Reserve will raise interest rates next month, the figure jumping from 39% in October.

Gold futures for December delivery fell to $US1081 and ounce - a 0.4% drop - on New York's Commodities Exchange, as copper futures headed down 2.7% to hit $US2.1585oz - its lowest since July 2009.