Amazon is expanding its same-day grocery delivery service to 1,000 cities and towns across the U.S., the company said Wednesday. It's also introducing thousands of perishable grocery items to its offerings,

Subscribers to Amazon.com's Prime service can now get strawberries, milk, meats and frozen dinners on the same day they order them as the company expands its fast-delivery option to perishable food items,

The online retail giant plans to expand the service to 2,300 U.S. locations by year’s end in its quest to compete with Walmart.