Gold bars are stacked in the safe deposit boxes room of the Pro Aurum gold house in Munich March 3, 2014. REUTERS/Michael Dalder/Files

By A. Ananthalakshmi

SINGAPORE (Reuters) - Platinum tumbled to a 5-1/2-year low on Tuesday as a stronger dollar, weaker gold prices and improving supply took a toll on prices.

Platinum, the worst performing precious metal of the year, fell to $1,096.50 an ounce during Asian hours, its lowest since July 2009. It is down more than 8 percent this year.

"The sentiment around platinum is quite negative. It's a combination of supply coming back online after the strikes last year and it's certainly getting no support from the gold market," said ANZ analyst Victor Thianpiriya.

Silver, platinum and palladium typically track the price of gold, currently near a three-month low amid fears the U.S. Federal Reserve would soon hike interest rates.

A strong greenback, currently near a 12-year high against a basket of major currencies, is also dragging down dollar-denominated commodities.

Global platinum supply is also recovering after a five-month strike last year in South Africa, the top producer.

Platinum is currently trading at a discount of about $53 an ounce to gold - the widest spread since March 2013.

Thianpiriya said the gap could widen further.

"I wouldn't be surprised to see platinum at around $1,020 over the next six months or so," he said. ANZ expects gold to drop to $1,100 in the next three months.

Above ground stocks may have to be depleted further before platinum can make significant upside advances, HSBC analyst James Steel said.





FED MEETING

Spot gold was up 0.2 percent at $1,156.05 an ounce by 0719 GMT, near last week's $1,147.10, the lowest since Dec. 1.

Traders were looking to this week's Fed policy meeting to gauge the timing of a U.S. rate hike. The U.S. central bank begins its two-day policy meet on Tuesday, with a statement expected on Wednesday.

Expectations that the Fed would begin increasing rates as soon as June given a strong U.S. economy have boosted the dollar. Higher rates could dent demand for assets such as bullion that do not pay any interest.

ETF Securities, an operator of gold-backed exchange-traded products, said its long gold funds witnessed the largest weekly outflows since inception last week.

Danny Laidler, the head of the firm's Australia and New Zealand operations, said $376.50 million of funds exited last week amidst a broad market selloff for gold.

"The prospect of higher U.S rates does not bode well for the precious metal," he said.





(Additional reporting by Manolo Serapio Jr.; Editing by Himani Sarkar and Anand Basu)