Ralphs parent company, Kroger, challenges Amazon with ‘scan and go’ shopping technology. Roughly 30 Ralphs stores in Southern California will get the Scan, Bag and Go technology in 2018. (Courtesy Kroger/Ralphs)

Customer Paul Fan shops at an Amazon Go store, Monday, Jan. 22, 2018, in Seattle. The store on the bottom floor of the company’s Seattle headquarters allows shoppers to scan their smartphone with the Amazon Go app at a turnstile, pick out the items they want and leave. The online retail giant can tell what people have purchased and automatically charges their Amazon account. (AP Photo/Elaine Thompson)

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A customer is handed a complimentary shopping bag as he heads into an Amazon Go store, Monday, Jan. 22, 2018, in Seattle. More than a year after it introduced the concept, Amazon opened its artificial intelligence-powered Amazon Go store in downtown Seattle on Monday. The store on the bottom floor of the company’s Seattle headquarters allows shoppers to scan their smartphone with the Amazon Go app at a turnstile, pick out the items they want and leave. (AP Photo/Elaine Thompson)

Nick Wingfield, a technology correspondent for The New York Times, goes through the exit gates at the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)

A employee checks IDs in the alcohol section of the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)



Groceries go straight into a shopping bag in the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)

Nick Wingfield, a technology correspondent for The New York Times, picks up a pre-packaged meal in the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)

Gates guard the entrance to the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)

Beers at the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)

Nick Wingfield, a technology correspondent for The New York Times, uses his phone to enter the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)



An emailed receipt after leaving the Amazon Go store in Seattle, Jan. 16, 2018. The technology inside the new convenience store, opening Jan. 22, 2018 in Seattle, enables a shopping experience like no other Ñ including no checkout lines. (Kyle Johnson/The New York Times)

FILE – In this Thursday, April 27, 2017, file photo, people walk past an Amazon Go store in Seattle. More than a year after it introduced the concept, Amazon is opening its artificial intelligence-powered Amazon Go store in downtown Seattle on Monday, Jan. 22, 2018. (AP Photo/Elaine Thompson, File)

Amazon plans to open as many as six more cashierless stores this year, according to a report.

The e-commerce giant is considering locations in Los Angeles and hometown Seattle, where the first Amazon Go store opened last month, Recode reported Thursday, citing people familiar with the situation.

Amazon Go is the company’s most ambitious effort to change the way people shop and a play for the struggling $550 billion U.S. convenience store industry. It’s part of the company’s larger brick-and-mortar ambitions, which include a stepped-up push into groceries with the Whole Foods Market acquisition as well as the opening of about a dozen book stores in such cities as Los Angeles, Chicago and New York.

To enter the Amazon Go store, customers download a smartphone app and scan a QR code to open a glass turnstile. Those shopping in a group scan the account holder’s phone once for each person entering and sensors will associate them with that account. From there, machines take over, watching the items plucked from shelves and adding them to a shopping cart. Shoppers are billed once they leave and if there are any mistakes or the customer isn’t happy with an item, you push a “refund” button to have that item removed from the bill. Shoppers don’t have to return an unwanted item to the store to get a refund.

Citing people familiar with the company’s plans, Recode reported that Amazon has held serious talks with Los Angeles billionaire developer Rick Caruso about bringing a Go store to The Grove, his 600,000-square-foot outdoor shopping Mecca.

Amazon didn’t immediately respond to a request for comment. The shares rose less than 1 percent to $1,492.05 at 10:17 a.m. in New York.