(CNN) -- Back in 2006, volunteers with No More Deaths, a humanitarian organization dedicated to helping migrants along the Arizona-Mexico border, began hearing the same stories from many who had been in the custody of the U.S. Border Patrol. Thwarted would-be unauthorized immigrants spoke of being denied water or food during their custody. Others said they were beaten. The organization started properly documenting these allegations, and the stories added up to nearly 13,000 testimonies whose results were released in a report this week. The findings went beyond denial of food and water. Migrants held by the Border Patrol spoke of being exposed to extreme heat or cold, sleep deprivation, death threats, and psychological abuse such as blaring music with lyrics about migrants dying in the desert.
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Organization spoke with nearly 13,000 migrants
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Many migrants reported similar cases of abuse by U.S. Border Patrol
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They alleged incidents of beatings, denial of food, and extreme temperatures
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U.S. Border Patrol says it will not allow any misconduct among agents
Although the research focused on migrants in the Arizona border area, the findings are consistent with reports from @placeholder sectors across the country, she said.