Palestinian students look on the pictures of members of Al Sawarka family who were killed hit by an Israeli airstrike, at their school, in Deir al-Balah, central of Gaza Strip on November 16, 2019. Israel said that it targeted Al Sawarka family and killed 8 people by mistake. Human rights groups have criticised previous Israeli army investigations into potential war crimes carried out in the Gaza Strip. Photo by Ashraf Amra