Palestinian security inspected the headquarters of the UN Relief and Works Agency (UNRWA) in Gaza City and workers reinforced the compound's main gate with metal sheets Monday, a day after Muslim extremists attacked a UN-run elementary school in Gaza. At the time of the attack, the school in the southern Gaza refugee camp of Rafah had hosted a sports festival. The incident began with a protest by Muslim extremists who said the festival was un-Islamic. Some of the protesters tried to enter the school, one hurled a bomb and a gunfight ensued. The bodyguard of a local Fatah politician was killed and seven people wounded in the attack. The top UN official in Gaza, John Ging, was in the school at the time but was not harmed.