Amazon reportedly has plans to test a new delivery service using its own couriers rather than third party logistics partners.
Amazon couriers would pick up products directly from Amazon sellers and deliver them to Amazon warehouses under the new system.
The test would start with a small number of independent sellers based in Los Angeles, according to The New York Times.
After this, the trial would expand to other delivery services usually handled by larger carriers.
It is not yet known whether the service would expand internationally, and Amazon neither confirmed or denied the test.
An Amazon spokesman said: “We’re always innovating and experimenting on behalf of customers and the businesses that sell and grow on Amazon to create faster lower-cost delivery choices.”
Net sales at Amazon leapt by 31% to $177.9bn (£124.8bn) in the full year to 31 December 2017.