By Carla Mozee, MarketWatch

LONDON (MarketWatch) -- U.K. equities finished lower Thursday, losing grip of the intraday highs they hit after the European Central Bank's chief said policy makers were open to considering further easing measures.

The FTSE 100 index finished down 0.2% at 6,649.14, after spending the bulk of the session wading in and out of positive and negative territory. The equity gauge on Wednesday rose 0.1%.

The FTSE turned solidly lower as U.S. stocks came on line, with investors greeted by a jump in weekly jobless claims ahead of the U.S. government's jobs report for March, due Friday.

With an eye on the euro zone --the U.K.'s key trading partner -- the FTSE 100 had followed other European bourses higher after ECB President Mario Draghi said during an afternoon news conference that quantitative easing was part of an "ample" and "rich" discussion by the bank's Governing Council. There's been speculation that policy makers at some point will take action to fight low inflation.

The European Central Bank, as expected, kept its key lending rate at 0.25%. The central bank also held the deposit rate at 0%, and the marginal-lending rate at 0.75%.

Ahead of the ECB decision, a report showed activity in the U.K. services sector grew, albeit at the slowest pace in nine months, according to Markit/CIPS data released Thursday. The business activity index came in at 57.6 in March compared with 58.2 in February.

Meanwhile, Mark Carney, head of the Bank of England, raised the prospect for policy change in the U.K., with Carney telling The Northern Echo daily that interest rates may increase before the country's next general election.

Among movers in the U.K. market, Vodafone (VOD) shares were off 0.9% after the company said its U.K. division will invest GBP1 billion ($1.66 billion) toward improving its network, and that it aims to create 1,400 jobs with the opening of 150 new stores.

Tullow Oil PLC topped blue-chip performers, climbing 6.2% after the oil exploration company said it plans to repay some debt with proceeds from the sale of $500 million of senior notes.

Shares of Just Eat PLC leapt as much as 15% on their trading debut, giving the online food-delivery company a market capitalization of nearly GBP1.70 billion ($2.82 billion). The shares priced at GBP2.60 a share, the top end of the GBP2.10-to-GBP2.60 range, and ended at GBP2.83, up 8.8% from the IPO price.

More news from MarketWatch:

Is the S&P 500 heading for a 30% plunge?

Weidner: The market's rigged, you say? When wasn't it?

Reeves: 3 red-hot investment opportunities

Subscribe to WSJ: http://online.wsj.com?mod=djnwires

Vodafone (LSE:VOD)
Historical Stock Chart
From Apr 2024 to May 2024 Click Here for more Vodafone Charts.
Vodafone (LSE:VOD)
Historical Stock Chart
From May 2023 to May 2024 Click Here for more Vodafone Charts.