* Oil gains as Libyan unrest helps push prices higher
* Euro, sterling advance on prospects of rate increase
* U.S. bonds mostly ease in profit-taking before auction (Adds open of U.S. markets, byline, dateline)
By Herbert Lash and Natsuko Waki
NEW YORK/LONDON, Feb 23 (Reuters) - World stocks slid further from recent 30-month highs on Wednesday as violence in Libya pushed oil prices higher while fanning concerns about inflation and the global economic recovery.
On Wall Street the Dow was slightly lower a day after stocks' worst session since August, but fears that unrest in Libya could spread to other oil-producing nations in the region and choke off exports pressured European equities and pushed safe-haven government bonds higher.
U.S. light sweet crude oil <CLc1> rose $1.46 to $96.88 a barrel, the the highest level since October 2008.
The euro and sterling, meanwhile, rose versus the dollar on expectations that interest rates in the euro zone and Britain will rise sooner than U.S. rates and likely keep the greenback under pressure. For details see [
]The euro <EUR=> was up 0.53 percent at $1.3725.
Traders said prospects of higher inflation and interest rates took center stage in currency markets, pushing aside concerns about political tensions in North Africa.
Copper, often a barometer of economic demand, fell to the lowest levels in nearly a month on worries inflation could weigh on the global economic recovery. The metal has slipped nearly 7 percent from record highs at $10,190 a tonne earlier in the month [
]Much of the market's focus remained on Libya where Muammar Gaddafi's attempts to crush a revolt against his four-decade rule have killed as many as 1,000 people, Italy's foreign minister said. [
]"The turmoil is not only about inflation and oil, but it is affecting equity markets and those safe-haven flows have been dominating recently," said Glenn Marci, strategist at DZ Bank.
"We might see some calmer markets, but I'm not totally convinced the rally will stop here," Marci said, referring to debt instruments.
U.S. Treasuries prices slipped as investors took profits from Tuesday's safe-haven rally due to North African turmoil and in an effort to force a price concession before a five-year debt sale. [
]The benchmark 10-year U.S. Treasury note <US10YT=RR> was down 1/32 in price to yield 3.46 percent.
The MSCI world equity index <.MIWD00000PUS> was down 0.2 percent,
Wall Street was mixed.
The Dow Jones industrial average <
> dipped 28.87 points, or 0.24 percent, to 12,183.92. The Standard & Poor's 500 Index <.SPX> edged up 0.65 point, or 0.05 percent, to 1,316.09. The Nasdaq Composite Index < > added 0.45 point, or 0.02 percent, to 2,756.87. (Additional reporting by Angela Moon and Chris Reese in New York; Jessica Mortimer, Zaida Espana, Joanne Frearson, Jan Harvey and Melanie Burton in London; Writing by Herbert Lash; Editing by Kenneth Barry)