Stripping out food and energy costs, which tend to be more volatile, inflation stood at 3.8% over that 12- month period. It was the biggest increase in so-called core inflation since June 1992.
In the month of May alone, prices rose 0.6% on a seasonally adjusted basis, slightly less than in April. Core inflation, excluding food and energy prices, stood at 0.7%, down from 0.9% in April.
This is a developing story. It will be updated