By Jonathan Davies
UK industrial output rose slightly by 0.1% in February compared with January, according to the Office for National Statistics (ONS).
The figure was below analysts' expectations of a 0.3% rise, with oil and gas falling sharply and construction falling 0.9%.
The manufacturing sector performed strongest, rising by 0.4% after a 0.6% fall in January.
The figures suggest that growth is slowing down after the UK economy grew by 2.8% in 2014. Industrial output accounts for just under 15% of the UK's GDP.
Chris Williamson, chief economist at Markit, said: "Clearly this all bodes ill for economic growth in the opening quarter of the year. It's now looking like the economy slowed, and possibly quite markedly, compared to the 0.6% expansion seen in the closing quarter of 2014.
"The trend should improve in March, however, according to survey data."