Nine doctors gave the Guardian accounts of working in Gaza hospitals this year, all but one of them foreign volunteers. Their common assessment was that most of the dead and wounded children they treated were hit by shrapnel or burned during Israel’s extensive bombardment of residential neighbourhoods, in some cases wiping out entire families. Others were killed or injured by collapsing buildings with still more missing under the rubble.

But doctors also reported treating a steady stream of children, elderly people and others who were clearly not combatants with single bullet wounds to the head or chest.

Some of the physicians said that the types and locations of the wounds, and accounts of Palestinians who brought children to the hospital, led them to believe the victims were directly targeted by Israeli troops.

Other doctors said they did not know the circumstances of the shootings but that they were deeply troubled by the number of children who were severely wounded or killed by single gunshots, sometimes by high-calibre bullets causing extensive damage to young bodies.