MARCY-L'ETOILE, France- French drugmaker Sanofi on Tuesday said it would invest 610 million euros ($679.4 million) at two of its French sites to turn them into a hub dedicated to research, development and production of vaccines.

Investments will help enhance the capacities of the group's sites at Marcy-L'Etoile and Neuville-sur-Saone, central France.

The announcement came as Sanofi officials hosted a visit of French president Emmanuel Macron at Sanofi's Marcy-L'Etoile facility on Tuesday. ($1 = 0.8832 euros)

(Reporting by Gonzalo Fuentes; Writing by Matthias Blamont; Editing by Sudip Kar-Gupta and Louise Heavens) ((matthias.blamont@thomsonreuters.com; +33 1 4949 5054;))