Mismanagement at a massive Immigration and Customs Enforcement facility in Texas created unsafe conditions that contributed to detainee deaths and suffering even as millions of wasted tax dollars enriched contractors, according to a federal report released Tuesday.

The Government Accountability Office report documents serious problems at Camp East Montana, a sprawling tent facility at Fort Bliss in El Paso where three detainees have died in little more than six months. Evidence in one of those deaths, of a 55-year-old Cuban migrant who died in January after being held down by guards, was “missing or destroyed,” the report found.

ICE rushed to open the camp in August before construction was complete and failed to conduct required oversight to ensure detainees were held in sanitary conditions and receiving adequate medical care, according to the report.