S/2018/138 6/19 18-02426 Protection 14. Air and ground-based strikes continued to kill and injure civilians and to damage and destroy civilian infrastructure throughout the month. Explosive weapons continued to be fired into populated areas, indiscriminately killing and injuring civilians, destroying and damaging vital infrastructure and leaving communities littered with hazards that continued to kill and injure civilians and impede humanitarian access. The use of improvised explosive devices in certain areas added to the complexity of the explosive hazard threat. The large number of civilian casualties and the scale of civilian destruction remain a strong indication that violations of the fundamental rules of distinction, proportionality a...