Amazon has announced that a new service called Prime Now will provide one-hour delivery for a range of "daily essentials." The service launches in Manhattan today. The company says it plans to introduce Prime Now to additional cities in 2015.

Prime Now—available just to Prime subscribers—will ship books, toys, and other everyday items to your home within one hour for $8. There will also be a two-hour delivery service that will be free. The service will be available to Manhattan residents from today, from 6a.m. to midnight, seven day a week.

The scheme will roll out to other cities in the U.S. in 2015, though it's not yet clear which cities are on that list. [Amazon]