Federal agencies are investigating how a 16-year-old boy was able to work at a Mississippi chicken processing plant where he was killed last week when he became entangled in machinery that he was cleaning.

The teen was part of the sanitation crew at the Mar-Jac Poultry factory in Hattiesburg, a city in the southern portion of the state near the coast, the company said in a news release. Hattiesburg police were called around 8 p.m. Friday to the plant to begin investigating the boy’s death, police reviously said.

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Mar-Jac denies knowing the teen was a minor

In a news release, Mar-Jac denied knowing that the victim was a minor until after the tragedy occurred. Mar-Jac contracts with staffing companies to fill positions at its facilities, an agreement that Mar-Jac said requires those third parties to verify job applicants are legally qualified to work before they’re hired.

In the company’s release, provided Thursday to USA TODAY, Mar-Jac said “this individual’s age and identity were misrepresented on the paperwork.” The name of the staffing company was not identified.

“Although the investigation is still ongoing, it appears now that this worker is less than 18 years of age and should not have been hired,” the company said. “Mar-Jac MS would never knowingly put any employee, and certainly not a minor, in harm’s way.”

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Forrest County Deputy Coroner Lisa Klem told the Hattiesburg American, part of the USA TODAY Network, that the teen was a Hattiesburg resident, but declined to release his name because he was a minor. A cause of death has not been released pending an autopsy.