UN agencies sounded the alarm about war-torn Gaza on Tuesday, saying that 10 children a day are losing one or both legs and half a million Palestinians suffer “catastrophic” hunger. There was no let-up in Israel’s bombardment of the Gaza Strip, as it maintained the siege on the territory’s 2.4 million people. An AFP correspondent witnessed a strike that killed five people, including two children, near Gaza City’s Al-Shifa hospital, leaving the corpses scattered in a pool of blood. Philippe Lazzarini, head of the UN agency for Palestinian refugees, in a briefing in Geneva warned of the war’s di…