By Sara Sjolin, MarketWatch

LONDON (MarketWatch) -- Shares of Whitbread PLC climbed in an upbeat U.K. market after it reported encouraging sales figures on Tuesday, while banking giant HSBC Holdings PLC rose after a broker upgrade.

The FTSE 100 index added 0.7% to 6,374.21, closing higher for a fourth straight day.

Shares of Whitbread gained 3.6% after the hotel and restaurant operator reported a 13.8% rise in total sales in the 13 weeks to May 30, as cold weather boosted sales at coffee shops.

Also on the rise in London, shares of banking giant HSBC (HBC) put on 2.1% after Citigroup lifted the firm to buy from neutral, citing a weak performance in the past month as a good reason to buy into the company now.

Citigroup also reiterated its buy rating on Standard Chartered PLC , helping send the bank 1.8% higher.

Other banks also gained, with Lloyds Banking Group PLC (LYG) up 1.4%, Barclays PLC (BCS) 1.2% higher and Royal Bank of Scotland Group PLC (RBS) increasing 2.2%.

Also of interest in the U.K. on Tuesday, data showed inflation accelerated to 2.7% in May, fueling worries that higher prices could undermine a recovery.

"Real pay has been falling continually since late 2009, which has been one of the factors causing the economic recovery to have been disappointingly weak," said Chris Williamson, chief economist at Markit, in a note.

"However, other factors have helped offset some of the income squeeze from inflation in recent months. Households' financial worries are now at their lowest since the start of 2010, according to Markit's monthly study of 1,500 households in June, with sentiment having been buoyed by people being busier at work, rising house prices and the better economic news flow in the media," he added.

Among other notable movers in London, shares of EasyJet PLC added 2.2% after the budget airline said it will buy 135 A320 planes from Airbus for delivery between 2015 and 2022.

Advertising major WPP PLC picked up 0.9% after saying it has taken a stake in mobile-content platform Muzy Inc.

On a more downbeat note in London, some mining firms moved lower as metals prices mostly dropped.

Shares of Eurasian Natural Resources Corp. erased 4.5%, Fresnillo PLC lost 2.2% and Antofagasta PLC dropped 2%.

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