An International Advocacy Group is citing worker complaints for it's criticism of what it calls restrictive working environments at U.S. poultry plants.

FOX's Gurnal Scott has the story:

Oxfam says it's finding that workplace environments appear to be driven by fear, forcing workers in some cases to wear diapers on the job.

An Oxfam report cites worker allegations in saying that refusal of bathroom breaks during shifts is troubling. One worker at a North Carolina Tyson Chicken plant says it can be so bad that workers "urinate in their pants".

Tyson officials say there's no evidence of truth to the allegation. The National Chicken Council in a response did not deny the claims, but said such instances are extremely rare.

Gurnal Scott, FOX News.

Follow Gurnal Scott on Twitter: @GurnalScott