John Oliver ran a segment on Sunday's "Last Week Tonight" criticizing the working conditions in Amazon warehouses and other logistics centers.

Oliver said Amazon's success was built on "creating a system that squeezes the people lowest on the ladder hard."

Dave Clark, Amazon's senior vice president of operations, tweeted that Oliver was "wrong on Amazon."

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An Amazon executive has railed against a segment on John Oliver's "Last Week Tonight" criticizing the company.

During his HBO show on Sunday, Oliver took aim at what he called the "brutal" working conditions inside Amazon warehouses, or fulfillment centers as the company calls them.

"The more you look at Amazon, the more you realize its convenience comes with a real cost," Oliver said.

"Because, think about it, we used to have to drive to stores to buy things. Now those things are brought directly to us and they're somehow cheaper. That didn't just happen with a clever algorithm — it happened by creating a system that squeezes the people lowest on the ladder hard, and all the while the man behind Amazon is now worth $118 billion, more than anyone else in the world."

Read more: Amazon warehouse employees speak out about the 'brutal' reality of working during the holidays, when 60-hour weeks are mandatory and ambulance calls are common

Oliver homed in on reports of Amazon's union-busting tactics, the physical drain on its workers, and the level of control management exerts over employees — including closely monitoring bathroom breaks.

"When people shorten their time in the bathroom they don't shorten the bathroom part, they shorten the handwashing part, so the next time you order something online it's safe to assume that it's been packed by urine-soaked hands," Oliver quipped.

The following day, Dave Clark, Amazon's senior vice president of operations, voiced his objections to Oliver's monologue, saying Oliver was "wrong on Amazon."

Clark touted the $15 minimum wage introduced by the company last year, said Amazon operated a "safe, quality work environment," and said Oliver and his producers had declined an invitation to take a tour of a warehouse.

This isn't the first time Amazon has publicly bristled against a public figure's characterization of the company. Amazon's official account tweeted that Rep. Alexandria Ocasio-Cortez was "just wrong" after she accused the company and its CEO, Jeff Bezos, of systematically underpaying workers.