The first lady of Guatemala has visited the Nogales facility where hundreds of child migrants from mostly Central American countries are being held.

The Arizona Daily Star reports that Rosa Leal de Pérez also visited Tucson's Greyhound bus station where many women and children suspected of crossing the U.S. border illegally are dropped off by immigration officials. The families are expected to report back to authorities within 15 days.

Leal de Pérez said she wanted to see the conditions in which children are being held. She also visited a new shelter set to open soon in Tucson.

U.S. border agents have seen a large spike in the number of unaccompanied children from Central American countries crossing the border illegally. Many of the children cross into Texas and are flown to Arizona to be processed here.