Israel has reportedly begun launching airstrikes and evacuated some 100,000 of the over one million Palestinians sheltering in Rafah.
Guterres will later travel to Jordan where he will visit UNRWA facilities and have a Ramadan Iftar with Palestinian refugees and UN staff in Amman.
Israel's current plan is to move those who are located in Rafah toward the center of the Gaza Strip before the offensive actions that will be taken.
Netanyahu referred to Rafah as "the last Hamas stronghold."
Israel and Hamas have been at odds over the terms of a deal as Hamas insists on a full withdrawal and end of the war, while Israel insists that it must be allowed to finish its military campaign.
Channel 12 reported the riots broke out after a Gazan teen was shot dead by Hamas policemen while attempting to gather humanitarian aid.
The wall, which is set to span 8 square miles, is being developed as Egyptian officials fear refugees from Gaza will flood into the country after Israel removes Hamas from power.
The United Nations has said an Israeli offensive on Rafah could "lead to a slaughter".
Instead of putting pressure on Israel to stop its campaign, the US and the rest of the world should be upping pressure on the genocidal terrorist group to release the hostages and surrender.
The Gaza war’s impact on Egypt’s economy is not hidden.