Jet.com, an American e-commerce company owned by Walmart (WMT) - Get Walmart Inc. Report , will begin selling apparel from niche online outlets also belonging to Walmart, the Wall Street Journal reports.

Jet will commence selling apparel on ModCloth, an online retailer of indie and vintage-inspired women's clothing Walmart bought in March, in the coming months. In 2018, Jet will also start selling apparel on men's clothing site Bonobos, which Walmart snatched up in June.

On top of the apparel offerings, Jet will also begin selling a new line of private-label foods and other groceries. The lineup will consist of roughly 60 food and household items to go on sale over the next two months.

The moves highlight the broader, escalating war between Walmart and Amazon.com (AMZN) - Get Amazon.com, Inc. Report , as the two retailers ramp up their efforts in both private-label food products and apparel.

Shares of Walmart were sinking lower in pre-market trading on Friday.

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