An Amazon employee died at the company's fulfilment centre in Troutdale, Oregon, with work continuing around the body, a report said.
The incident occurred at the PDX9 warehouse, where the employee reportedly collapsed on the floor, according to Tech Crunch.
Amazon confirmed the death, saying it was in contact with the worker's family and had extended support to staff at the site.
Employees were sent home early following the incident and were paid for the remainder of their shift, with the night shift cancelled and workers still compensated.
An investigative report by the Western Edge suggested that conditions inside the building had been unusually warm, with some workers attributing this to the installation of soundproof curtains.
However, authorities say the incident was not work-related, with Oregon's Occupational Safety and Health Administration (OSHA) reviewing the case and determining that the death was not related to workplace conditions.
The PDX9 facility has faced criticism over working conditions in the past, with a 2018 investigation finding that 26% of employees had sustained injuries.
Amazon has faced multiple probes by federal agencies and prosecutors over workplace safety, including allegations of underreporting injuries.
