The United Nations' Mideast peace envoy urged Israel and the Palestinians to exercise restraint Friday ahead of protests organized by Hamas on the Gaza Strip's border fence، as Ynet said. Thousands of Palestinian protesters were expected to mass along Israel's border with Gaza for another weekly protest، testing Egypt's efforts to mediate a lasting cease-fire between Israel and the Hamas terror group. Mosque loudspeakers in the Palestinian enclave urged Gazans to attend Friday's demonstrations، despite statements by Gaza's leaders that Hamas seeks to rein in the protests. "In light of today's planned Gaza march، I urge all to exercise restraint، to proceed in a peaceful manner، and to avoid escalation،" Nickolay Mladenov said in a statement. "The UN is working with Egypt and its partners to avoid violence، address all humanitarian issues and support reconciliation." Meanwhile، the Hamas-led organizing committee of the weekly "March of Return" riots issued an unusual announcement، telling demonstrators not to approach the Gaza border fence during the protests. The Palestinians were asked not to come near the border fence so Israel would not have an excuse to attack the coastal enclave. "Your blood is valuable، keep it to establish the homeland،" the announcement read.