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* FTSE 100 gains 0.4%, FTSE 250 up 0.1%
Jan 5 (Reuters) - British shares gained on Tuesday, led by a
jump in retail stocks following record grocery sales in
December, overshadowing risks arising from a fresh national
lockdown imposed to curb the spread of a new COVID-19 variant.
Prime Minister Boris Johnson said on Monday a new, more
contagious variant of the coronavirus was spreading at great
speed and immediate action was needed to slow it down.
The benchmark FTSE 100 index .FTSE gained 0.4%, with
general retailers .FTNMX5370 and energy stocks .FTNMX0530
gaining between 2% and 3%.
December was the busiest month ever for British supermarkets
as tightening COVID-19 restrictions and the closure of
restaurants, bars and cafés meant shoppers spent 11.7 billion
pounds ($15.9 billion) on groceries, industry data showed.
UK Finance Minister Rishi Sunak's plans to offer further
help to businesses struggling under the renewed COVID-19
restrictions also aided sentiment. The mid-cap index .FTMC was up 0.1%.
Morrisons MRW.L , Britain's fourth-largest supermarket
group, gained 0.2% after reporting a rise in underlying sales in
its latest trading period encompassing Christmas.