Deflation across the 19 countries that use the eurozone currency is gathering pace.
In January, prices in the eurozone were 0.6% down on their levels a year ago.
The figure shows the eurozone heading deeper into deflationary territory from December, when prices were 0.2% down on the year before.
A large contributor to falling prices is the cost of energy, with oil prices down almost 60% on the middle of last year,
Energy prices plunged 8.9% in January.