United Nations Secretary General Ban Ki-Moon (C) is welcomed by Palestinian Prime Minister Rami Hamdallah (R) in the west bank city of Ramallah on July 22, 2014. UN chief Ban Ki-moon demanded that Israel and Hamas halt the spiralling violence in Gaza as he pushed diplomatic efforts to end bloodshed that has killed more than 600 Palestinians. (Xinhua/Fadi Arouri)
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