The legislative elections will take place in two rounds on June 30 and July 7.

The announcement came after the first projected results from France put the far-right National Rally party well ahead in the European Union's parliamentary elections, handing a chastening loss to Macron's pro-European centrists, according to French opinion poll institutes.

Marine Le Pen's anti-immigration, nationalist party was estimated to get around 31%-32% of the votes, a historic result more than double the share of Macron's Renaissance party, which was projected to reach around 15%.