By Sarah Turner

BHP Billiton lost ground in a lower mining sector, with investors fretting about a possible corruption probe while banks declined amid worries that a new tax could be slapped on lenders, and both sectors kept the top British share index under pressure on Wednesday.

The FTSE 100 index declined 0.6%, or 33.36 points, to 5,750.37. Other European shares were trading lower while U.S stocks edged higher at the start of trading.

BHP Billiton (BHP) shares lost 1.6%. The mining giant said it has uncovered possible violations of anti-corruption laws by its employees, following a request for information from the U.S. Securities and Exchange Commission.

BHP also posted an 11% increase in third-quarter iron-ore production on year to 31.16 million metric tons.

Other miners declining included Xstrata , down 1.5%, and Vedanta Resources , down 2.4%, as copper futures weakened, trading down 1 cent at $3.51 a pound.

Banks were also pressured, with Barclays (BCS) shares down 1%, as investors fretted about a possible new tax for the sector ahead of this weekend's Group of 20 meeting of finance ministers and central bank governors.

U.K. broadcaster British Sky Broadcasting lost 0.5% after it was downgraded to hold from buy at Royal Bank of Scotland, which said IPTV (Internet-enabled TV) is a "growing threat on the horizon. We believe Sky can continue to grow, but the pace is likely to slow, and the shares could struggle to outperform."

The RBS analysts also see supermarket group Tesco entering the pay-TV market, providing new competition for British Sky Broadcasting which is 39% owned by News Corp, the parent of MarketWatch.

Tesco , up 1.6%, was upgraded to hold from sell on Wednesday at Societe Generale, which said management has been reassuring on the outlook for the group.

In earnings released the prior day, Chief Executive Terry Leahy told analysts that he doesn't see food inflation falling further, the U.K. economic recovery is underway, he sees encouraging trends in non-foods, and international sales are looking up, the broker said.

ARM Holdings , a supplier of Apple, rose 4.7% in London after the iPod maker reported stronger-than-forecast results.

In the currency markets, sterling gained against the dollar, trading up 0.3% at $1.5423, after the Bank of England said it was more confident about the economy than when it made a 9-0 decision to hold interest rates at 0.5% and maintain its 200 billion pound asset-purchase plan. Also, data showed jobless claims fell 32,900 in March.

Outside the top index, bookmaker Ladbrokes climbed 2.7%.

It expects to receive 80 million pounds ($123 million) from the U.K. tax authorities after reaching a settlement covering substantially all the items outstanding in the tax years through to December 2007.

However, Game Group shares slumped 13.6%.

Europe's top video game retailer announced the resignation of its chief executive and U.K. chief operating officer after reporting a 28% drop in annual profit and a continued slide in sales. Its interim chief executive, Chris Bell, also is a Ladbrokes veteran.

 
 
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