The detention facility is underneath a bridge connecting the US and Mexico.The migrants, including families and children, are kept in the detention facility by chain link fences.Concertina wire is used on the edges of the facility.The migrants have been given mylar blankets in the detention facility.Evangelical pastors have come to pray with the migrants, many of whom have traveled from Central America and beyond Mexico.US Customs and Border Protection have tents inside the facility as well.US Customs and Border Protection has closed all checkpoints in the El Paso sector for the time being. This area covers nearly 300 miles of the US-Mexico border.The US Border Patrol's Search, Trauma, and Rescue (BORSTAR) team is providing medical treatment to the migrants.US Customs officers are giving food to the migrants.In the detention facility under the bridge, there are hundreds of migrants and families. But there are currently 12,000 minors in the Department of Health and Human Services custody.Migrants are being apprehended in growing numbers on the US-Mexico border.President Donald Trump has threatened to close the border entirely. We've run out of room... But Mexico is going to have to do something; otherwise, I’m closing the border, he said in a Friday news conference. I'll just close the border.