U.N. Secretary-General António Guterres will visit the Egyptian border with the Gaza Strip today, Saturday.

He called for an investigation into Israel's killing of 4 unarmed Palestinians. The visit comes at a time when the Israeli occupation continues its threats to invade the city of Rafah in the southern Gaza Strip. The city has become the last refuge for hundreds of thousands of displaced Gazans, despite international appeals not to do so and warnings of the danger of attacking the city.