As 13 palestinians, including a medic, are reported to have been killed by an israeli air strike near a hospital. And a United Nations team visiting gazas biggest hospital has found that many palestinans who were injured as lorries were delivering aid on thursday, were wounded by gunshots. Our Diplomatic Correspondent paul adams has the latest. How were so many people injured . Were they shot, or crushed in a desperate stampede . At gazas shifa hospital, the un says theres evidence of both. This hospital is treating more than 200 people that were injured. And we have seen people with gunshot wounds, we have seen amputees and we have seen children as young as 12. Jihad is haunted by what he saw when the convoy arrived on thursday morning. Were the soldiers firing deliberately . Hes asked. Yes with tanks, soldiers, aircraft. Why the shooting started is still not clear. Israel says troops felt threatened how, these pictures do not show. Tanks were present. Theres no evidence of aircraft b