By Sara Sjolin, MarketWatch

LONDON (MarketWatch) -- The U.K.'s FTSE 100 index moved sharply lower on Friday amid a global stock-market selloff spurred by worries over slower growth in China and renewed financial volatility in Latin America.

The benchmark index slid 1% to 6,704.29, setting it on track for the lowest close in two weeks.

Shares of Aberdeen Asset Management PLC led decliners, off 5.7%, after Morgan Stanley cut the company to underweight from equal weight, with the analysts saying they continue to avoid asset managers that are skewed toward emerging markets.

"Deteriorating fund performance compounds challenge EM fundamentals, increasing the risk of negative revisions and further multiple de-rating at [Aberdeen Asset Management]," they said.

Emerging markets were also on the spotlight in the broader market on Friday, after currencies in countries such as Argentina, Turkey and South Africa plunged, in a global flight to safe havens like the yen and U.S. Treasurys. On Thursday, emerging-markets stocks hit a four month low, after weaker-than-expected Chinese data spurred worries about growth in the global economy.

Resource firms and banks, which are sensitive to risk appetite in the markets, were among the biggest decliners on Friday. Among miners, shares of Rio Tinto PLC (RIO) lost 1.4% and Glencore Xstrata PLC (GLCNF) dropped 1%.

In the banking sector, heavyweight HSBC Holdings PLC (HSBC) gave up 1.4%, Barclays PLC (BCS) fell 1.1% and Royal Bank of Scotland Group PLC (RBS) erased 1.3%.

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