A small army of Amazon employees are tweeting nice things about the working conditions in the company's warehouses.

The Twitter accounts have a standardized format, all bearing the Amazon smile logo as their background.

Amazon says these employees are called "FC Ambassadors" who have experience working in the order-fulfillment centers.

It follows a series of horror stories about working conditions, including workers peeing in bottles over fears that using a restroom would cause them to miss performance targets.

A small army of accounts have popped up on Twitter to tweet positive things about the working conditions at Amazon's warehouses.

TechCrunch discovered 15 accounts following a standardized format after the Twitter user Flamboyant Shoes Guy drew attention to them.

—FLAMBOYANT SHOES GUY 👟👞🌴🍍🥥🌹🌵 (@bornwithatail_) August 23, 2018

TechCrunch found that all the accounts bore the Amazon smile logo as backgrounds and had identical structures to their bios and the title "FC Ambassador" in their name, followed by a cardboard-box emoji.

The accounts engage with people about the working conditions in Amazon's order-fulfillment centers, weighing in when people tweet negatively about the company.

—Phil - Amazon FC Ambassador 📦 (@AmazonFCPhil) August 10, 2018

—Shaye - Amazon FC Ambassador 📦 (@AmazonFCShaye) August 21, 2018

—Leo - Amazon FC Ambassador 📦 (@AmazonFCLeo) August 23, 2018

But while Flamboyant Shoes Guy thought these accounts were bots posing as Amazon workers, the company says the ambassadors are real people being paid to spread the firm's message.

"FC ambassadors are employees who have experience working in our fulfillment centers," an Amazon representative told Business Insider. "The most important thing is that they've been here long enough to honestly share the facts based on personal experience.

"It's important that we do a good job of educating people about the actual environment inside our fulfillment centers, and the FC ambassador program is a big part of that along with the fulfillment-center tours we provide."

Looking through the ambassador accounts, Business Insider found they had all joined in August. Business Insider has contacted Amazon to ask just how recently this position was created, how many ambassadors it employed, and which criteria qualified workers for the role.

Amazon has frequently come under fire this year over the working conditions in its fulfillment centers. An undercover journalist in the UK said workers "peed in bottles" over fears that walking to the bathroom would cause them to miss targets. Business Insider's Shona Ghosh heard one story of a urine smell wafting from a trash can for similar reasons, while constant surveillance and health issues at work were also highlighted.

But Amazon's new public-relations push against its warehouse image seems to have unnerved some Twitter users:

—Tipo de incógnito (@S_de_Incognito) August 24, 2018