The UK's annual rate of inflation showed a shock rise in February after retailers offset higher import costs caused by the weak pound.
The consumer price index rose unexpectedly from 3% in January to 3.2%, according to figures from the Office for National Statistics today.
The rise confounded predictions of a sharp drop and resulted in another letter from Bank of England Governor Mervyn King to Chancellor Alistair Darling explaining why inflation is still more than 1% above the Government's 2% target.
Mr King said the 'somewhat higher than expected' rise in CPI was likely to be due to the lower pound being passed on to consumers on goods containing a large proportion of imported components.
But he said he expects inflation to fall back below the 2% target in the coming months as the impact of lower gas and electricity prices come through and the continuing recession bears down on demand.
Today's figures also revealed surprising data for the Retail Prices Index (RPI), which slowed to zero in February from 0.1% in January.
Economists had predicted RPI to have slumped into negative territory by as much as -0.7% as a result of the dramatic falls in interest rates and house prices. But RPI is still at its lowest level since March 1960 in what will be seen as a worrying sign, given its key role in wage negotiations and pension payments.
RPI has fallen by more than the official CPI rate as it also includes housing and mortgage costs, which have reduced dramatically amid the recession.
The ONS said inflation had moved higher due to sharply increased food and drink inflation, which rose by 11.5% on an annual basis in February. As well as the upward pressure from the weak pound, prices of vegetables were also impacted by a poor crop in Spain.
Transport prices added to the inflation rise, with the average price of petrol rising by 3.2p a litre to 89.5p a litre. It had been thought that moves from utility firms to lower energy tariffs would have helped bring CPI down, with many in fact fearing a bout of deflation could be on the cards.
While the ONS figures will not allay concerns of falling inflation later this year, the surprising rise in the consumer price index is likely to heighten anxiousness over the impact of the weak pound.
