New Delhi, Jan. 3 -- A grandmother and her 5-year-old grandson burned to death in Gaza when their tent caught fire while cooking, as thousands of Palestinians endure colder weather in makeshift housing.

The nylon tent in Yarmouk caught fire Thursday night while a meal was being prepared, a neighbor said. A hospital official said that two Palestinian men were killed by Israeli gunfire on Friday in Gaza.

The shaky 12-week-old ceasefire between Israel and the Hamas militant group has largely ended large-scale Israeli bombardment of Gaza. But Palestinians are still being killed by Israeli forces, especially along the so-called Yellow Line that delineates areas under Israeli control.

On Friday, American actor and film producer Angelina Joli...