By Ap  Reporter and Reuters and Joel Christie Mattresses, portable toilets and showers were brought in Saturday for 700 unaccompanied minors who spent the night sleeping on plastic cots inside an Arizona warehouse, a federal official said. A Homeland Security official told The Associated Press that about 2,000 mattresses have been ordered to the makeshift holding center — a warehouse that has not been used to house people in years. Gov. Jan Brewer's spokesman, Andrew Wilder, said Friday that conditions at the center are so dire that federal officials have asked the state to immediately ship medical supplies to the center in Nogales.
@highlight
Mattresses, portable toilets and showers were brought in for 700 minors who spent Friday night on plastic cots inside an Arizona warehouse
@highlight
Governor Jan Brewer called the situation dire and federal authorities have asked the state to immediately ship medical supplies to the Nogales site
@highlight
The Joint Base San Antonio Lackland has become a temporary shelter for children and youths caught crossing the border illegally and alone
@highlight
The government expects as many as 60,000 child immigrants to illegally enter the U.S. alone this year
@highlight
Measures a tenfold jump in just three years
@highlight
More than 33,000 have been picked up in Texas since October
@highlight
Most are fleeing poverty in El Salvador, Honduras and Guatemala
@highlight
President Obama said it was an 'urgent humanitarian situation'
Overflowing: The shelter at Lackland Air Force Base in Texas can no longer accommodate large numbers of children and mothers traveling with their kids, forcing the federal government to open more facilities and move many to @placeholder for processing
United States and now rests on a bunk at @placeholder in San