APTOPIX Mideast Israel Palestinians

Palestinian relatives mourn for Qasim Alwan, 4, and Imad Alwan, 6, who were killed Friday by an Israeli tank shell, during their funeral in Gaza City, Saturday, July 19, 2014. Relatives say the tank shell kit the Alwan family's kitchen, killing Qasim and Imad. (AP Photo/Hatem Moussa)

Palestinian relatives mourn for Qasim Alwan, 4, and Imad Alwan, 6, who were killed Friday by an Israeli tank shell, during their funeral in Gaza City, Saturday, July 19, 2014. Relatives say the tank shell kit the Alwan family’s kitchen, killing Qasim and Imad. (AP Photo/Hatem Moussa)

Palestinian relatives mourn for Qasim Alwan, 4, and Imad Alwan, 6, who were killed Friday by an Israeli tank shell, during their funeral in Gaza City, Saturday, July 19, 2014. Relatives say the tank shell kit the Alwan family’s kitchen, killing Qasim and Imad. (AP Photo/Hatem Moussa)