welcome to all of you watching us here in the united states, canada, and all around the world. i m kim brunhuber with cnn s continuing coverage of the israel/hamas war. we re following reports of a deadly explosion at a crowded refugee camp in central gaza within the past couple of hours. the densely packed al may gauzei camp lies to the south and past the line the idf has repeatedly told palestinians to go. a local hospital official says at least 33 were killed, mostly women and children, and there are far too many wounded to treat. the cause of the blast is still unknown. the idf hasn t commented on whether it was targeting the area. the israeli military is expected to open the road corridor so people in gaza city can flee south. the idf is offering what it calls safe passage during a four-hour period beginning 10:00 a.m. local time. the idf released video of its chief of staff just inside gaza on saturday. more than a week into the ground operation. have a look. tran