The head of the United Nations aid agency for Palestinians has called on the international community to support a long-term solution for the region, saying there will be no peace if the root causes of the conflict are not resolved. Philippe Lazzarini was speaking in Gaza two days after a ceasefire agreement to end an 11-day conflict between Israel and Gaza's armed factions. Al Jazeera's James Bays reports. - Subscribe to our channel: aje.io/AJSubscribe - Follow us on Twitter: twitter.com/AJEnglish - Find us on Facebook: www.facebook.com/aljazeera - Check our website: www.aljazeera.com/ #Israel #Palestine