A worker walks past Amazon Fresh delivery vans parked at an Amazon Fresh warehouse in Inglewood, California. REUTERS/Jonathan Alcorn Amazon is planning to open physical grocery stores in a move that could upend the supermarket industry in the US, The Wall Street Journal reports.

The stores — known internally as Project Como — will be small, stocked only with fresh items such as produce, milk, and meats, The Journal reports, citing unnamed sources. Only Amazon Fresh subscribers will initially be able to shop at them, according to the report.

Customers will be able to order items that have longer shelf lives, such as cereal and peanut butter, through a mobile app or from touch screens around the stores, according to the report.

Amazon is also planning to open drive-in locations, where customers can pick up groceries that they ordered online, the report said. Employees will deliver the groceries to customers' cars using technology that can read license plates, meant to speed up wait times, according to The Journal.

Geekwire has published photos of what it says is one of the first Amazon grocery stores in Seattle.

From the outside, it looks a lot like a Chipotle restaurant.