there was no immediate comment from israel. earlier, its defence forces admitted striking an ambulance in gaza city but said the vehicle was being used by hamas to transport fighters. our international editor jeremy bowen has this report on the aftermath of the attack by israel on an ambulance convoy. it contains images you may find upsetting from the start. around four this afternoon, an ambulance outside shifa, the main hospital in gaza, was destroyed by an israeli aircraft. in a crowded area, 13 people, including bystanders, were killed and 26 injured, according to the health ministry in gaza. israel said the ambulance was carrying a hamas terrorist cell. hamas said the attack was zionist nazi terror. thousands of palestinian civilians are sheltering at shifa hospital. israel s army says it s a battle zone and they should evacuate south. more dead civilians on al rasheed street, one of only two roads south where israel says civilians must go to be safe. the bbc has located