Euro zone economic growth slowed in the first three months of the year and industrial output in March was weaker than expected, data from the European Union's statistics office Eurostat shows. 

Eurostat confirmed its earlier preliminary flash estimate that gross domestic product in the 19 countries that share the euro rose 0.4% quarter on quarter in the three months from January to March.

This was slower that the 0.7% pace of growth in the previous quarters.

Year-on-year, euro zone GDP grew 2.5%, in line with the preliminary estimate and down from 2.8% in the fourth quarter of 2017 and 2.7 percent in the third quarter. 

Eurostat also said that industrial production rose 0.5% month-on-month in March, falling short of market expectations of a 0.7% rise. 

Year-on-year, production increased 3% in March compared to expectations of a rise of 3.7%. 

February output numbers were revised down as well to -0.9% month-on-month from -0.8% and to 2.6% year-on-year from 2.9%.