Casino Guichard-Perrachon SA (CO.FR) said Tuesday that it has strengthened its partnership with postal company La Poste for home delivery in France.

Casino said the new services offered include the home delivery of groceries in the cities of Paris and Lyon in under an hour. The deliveries can be ordered via a mobile application and will be provided in partnership with Stuart, a subsidiary of La Poste.

The French retailer said Cdiscount, a subsidiary of Casino's e-commerce unit Cnova, and Chronopost will extend parcel delivery on Sundays to the 15 largest cities in France. They will also offer an express-delivery service from June.