DEIR AL-BALAH, Gaza Strip — Israeli forces shelled tent camps for displaced Palestinians outside Gaza’s southern city of Rafah on Friday, killing at least 25 people and wounding another 50, according to the territory’s health officials and emergency workers.

This was the latest deadly attack in the Gaza Strip, where hundreds of thousands have fled fighting between Israel and Hamas. It comes less than a month after an Israeli bombing triggered a deadly fire that tore through a camp…