Washington (CNN) The Department of Homeland Security's Inspector General has found "dangerous overcrowding" and unsanitary conditions at an El Paso, Texas, Border Patrol processing facility following an unannounced inspection, according to a new report.

The IG found "standing room only conditions" at the El Paso Del Norte Processing Center, which has a maximum capacity of 125 migrants. On May 7 and 8, logs indicated that there were "approximately 750 and 900 detainees, respectively."

"We also observed detainees standing on toilets in the cells to make room and gain breathing space, thus limiting access to the toilets," the report states. The report was first obtained by CNN.

A cell with a maximum capacity of 12 held 76 detainees, another with a maximum capacity of eight held 41, and another with a maximum capacity of 35 held 155, according to the report.

"(Customs and Border Protection) was struggling to maintain hygienic conditions in the holding cells. With limited access to showers and clean clothing, detainees were wearing soiled clothing for days or weeks," the report states.

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