* Gold largely unchanged after Fed held rates steady
* Platinum drops to its lowest level since October 2006
* Investors sell precious metals and opt for cash (Recasts, updates with Fed rate decision, quotes, closing prices, adds NEW YORK to dateline)
By Frank Tang and Agnieszka Flak
NEW YORK/LONDON, Sept 16 (Reuters) - Gold dropped on Tuesday as jittery investors sold heavily to cover losses in other markets and as the Federal Reserve held interest rates steady, while platinum plunged almost 10 percent amid financial turmoil.
The U.S. central bank kept its target for its Fed Funds rate at 2 percent and said in a statement that "strains in financial markets have increased significantly" and "economic growth appears to have slowed recently." [
]Spot gold <XAU=> was at $779.90/781.30 an ounce at 1:41 p.m. EDT (1741 GMT) by New York's last quote, compared with Monday's close of $786.20. Earlier it touched a one-week high of $786.95.
On Monday, gold soared 3 percent as investors sought a safe haven in bullion amid mounting fears about the stability of U.S. banks and financial companies.
George Nickas, precious metals broker of FC Stone in New York, said that a panic mentality led to an aberration of the weak and volatile gold prices, which did not reflect strong fundamental factors in the physical bullion market.
On Tuesday, gold limited losses in spite of sharply lower oil prices because of safe-haven buying following speculation about a possible rescue of major insurer American International Group (AIG) held Wall Street in its grip. [
]Bill O'Neill, managing partner of New Jersey-based LOGIC Advisors, said that if the bailout of AIG succeeded without wreaking havoc in financial markets, that could be bearish for gold as it showed the Federal Reserve's strong resolve.
U.S. gold futures for December delivery <GCZ8> settled down $6.50 at $780.50 an ounce on the COMEX division of the New York Mercantile Exchange.
GOLD ETFs SLUMP
Investor selling of gold held by exchange-traded funds also knocked confidence in the precious metal, analysts said.
ETF Securities said on Monday that the amount of gold it held to back its Physical Gold <PHAU.L> exchange-traded commodity fell by 16 percent last week to 1.551 million ounces.
In addition, ETF Securities said on Tuesday that some banks and brokerages ceased making markets in commodity securities backed by matching contracts from troubled insurer AIG on Monday afternoon. [
]The world's biggest gold-backed ETF, SPDR Gold Trust <GLD>, said its holdings fell more than 37 tonnes, or 5 percent, since the beginning of September.
"Index divestment and possibly ETF disinvestment may be weighing on gold for reasons of growing or new awareness of counter-party risks in owning these products," UBS analyst John Reade said in a note to clients.
PLATINUM GROUP METALS TUMBLE
Platinum also slid almost 10 percent on Tuesday to its lowest level since October 2006 as a weakening global economy hit demand from auto makers, with car sales dropping in Europe, China and the United States.
Platinum, mainly used in auto-catalysts, lost half of its value in the last six months from a record high of $2,290 an ounce in March as consumer confidence dipped and demand for cars weakened on the back of high fuel prices and weaker economies.
However, traders said that platinum plunged largely due to heavy liquidation by nervous investors to cover losses in other markets.
"I don't think there is any fundamental news for platinum (but) there is a panic to raise cash," FC Stone's Nickas said.
Spot platinum <XPT=> dropped to $1,055 an ounce, the lowest level since October 2006, and was last quoted at $1,054.00/1,074.00 an ounce from Monday's U.S. market close of $1,164.50.
Demand for new cars in Europe fell by 7.3 percent in July and 15.6 percent in August compared with a year ago. Over the first eight months of the year, new car registrations in Europe fell by 3.9 percent. [
]Spot palladium <XPD=> tumbled more than 5 percent, falling in line with platinum to trade 4.3 percent lower at $219.00/227.00 an ounce.
Spot silver <XAG=> was trading 4.3 percent lower at $10.59/10.64 an ounce, from Monday's close of $11.08 in New York. (Editing by Matthew Lewis)