Palestinian youth stand on a heart-shaped installation next to the rubble of a building following an Israeli airstrike on Khan Younis refugee camp, southern Gaza Strip,on Sunday. EPA
Palestinian youth stand on a heart-shaped installation next to the rubble of a building following an Israeli airstrike on Khan Younis refugee camp, southern Gaza Strip,on Sunday. EPA

‘All of them had died': Gaza doctor tells of unbearable loss in Israeli air strike