the head of humanitarian affairs for the united nations says there is no longer any humanitarian operation worthy of that name in the south of gaza. from jerusalem, here s our international editor, jeremy bowen. a warning you may find some of the images upsetting. video emerged this afternoon of palestinian men taken for interrogation. bbc staff recognised the town in northern gaza and we have geolocated the video there, too. palestinian diplomats said these were savage images evoking humanity s darkest times. the israeli army said only that suspects were being interrogated. posts on social media said the men had been sheltering with their families at a un school and that others were killed during the israeli raid. in this photo, the men had been moved to another location which we have not been able to verify. one of the captives is a journalist. he was forced to leave his disabled daughter, according to the newspaper he works for in london. earlier, in israel s parliament,