The UK economy contracted by 0.2% in the first quarter of 2012, its second consecutive quarter of negative growth, officially plunging the country back into recession for the first time since 2009.
The Office for National Statistics issued the estimate, subject to further revisions, blaming the impact on a downturn in construction.
According to ONS, output of production industries decreased by 0.4%, construction 3%. Output of the service sector increased by 0.1%.
Prime Minister David Cameron called the numbers "very, very disappointing".