Gold struggled on Wednesday to hold near a 12-week high as a rout in commodities such as oil and copper took a toll on the metal, offsetting safe-haven bids arising from global growth concerns.

Oil added to losses on Wednesday to trade near its lowest since 2009, while copper dropped to 5-1/2 year lows.

Spot gold fell 0.3 per cent to $1,227.50 an ounce by 0339 GMT, after marking a 12-week high of $1,243.60 on Tuesday.

"We are giving back some of the gains because of the overall unwinding of positions in commodities," said a precious metals trader in Sydney, adding that gold also faced technical resistance at around $1,244.

"Gold might push higher, given equities have been volatile, but it will be hard work. In the short term we might squeeze lower to $1,220 before we head back up."

Asian equities dipped on worries over global economic growth. On Tuesday the World Bank lowered its global growth forecasts for 2015 and next year due to disappointing prospects in the euro zone, Japan and some major emerging economies.

Typically, lower equities and a slowdown in the global economy would have lifted the price of safe-haven gold, but bullion traders found it hard to ignore the sharp sell-offs in oil and copper on Wednesday.

Adding to the pressure on bullion was strength in the dollar, which makes gold more expensive for holders of other currencies and also dulls its appeal as a hedge.

Among other precious metals, silver slipped 1 per cent after gaining nearly 3 per cent on Tuesday. Palladium and platinum also declined. – Reuters