Investors bought 3.04 billion euros of the five-year bond at an average yield of 4.68 percent.

The bid-to-cover ratio, a measure of the strength of demand, was 1.6, compared with an average of 2.96 at sales of similar maturity debt this year.

The 2032 bond sold at an average yield of 6.33 percent with a bid-to-cover ratio of 2.1.