Gaza City, Gaza: Displaced Palestinian children peak from under a shop shutter, where their family is taking shelter. Photograph: Mohammed Abed/AFP/Getty Images

Palestinian children sit in a car boot as they flee their family homes following heavy Israeli shelling during an Israeli ground offensive east of Khan Younis, in the southern Gaza Strip, July 23, 2014. REUTERS/Ibraheem Abu Mustafa

A Palestinian woman wearing clothes stained with the blood of other relatives, who medics said were wounded in Israeli shelling, cries at a hospital in Gaza City, July 20, 2014. REUTERS/Mohammed Salem

A Palestinian woman sits in a debris-strewn street as she looks at houses which witnesses said were damaged in an Israeli air strike that killed two children, in the northern Gaza Strip July 24, 2014. REUTERS/Suhaib Salem

Women and their children wait in line to register at the Honduran Center for Returned Migrants after being deported from Mexico, in San Pedro Sula, Honduras June 20, 2014. REUTERS/Jorge Cabrera

Palestinians sleep at a United Nations school, where people who fled heavy Israeli shelling in the Shejaia neighborhood sought refuge during fighting, in Gaza City July 21, 2014. REUTERS/Finbarr O’Reilly

Honduran children have meals at the Todo por ellos (All for them) immigrant shelter in Tapachula, Chiapas, Mexico, June 26, 2014. REUTERS/Jorge Dan Lopez

A displaced Congolese childs carries a basin at the Bulengo camp for internally displaced persons near Goma, Democratic Republic of the Congo. Over 55,000 people live in the camp where many people complain of a lack of assistance from the humanitarian community. Photograph: Phil Moore/AFP/Getty Images

Workers sew prayer caps, which are high in demand during the holy fasting month of Ramadan, at a factory in old Dhaka July 10, 2014. REUTERS/Andrew Biraj

A Palestinian woman cries inside her damaged house, which police said was targeted in an Israeli air strike, in Gaza City July 17, 2014. REUTERS/Mohammed Salem