Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Arab EnvoysAsk UN Chief to Launch Probe of Gaza Killings by Associated Press UNITED NATIONS -- Arab ambassadors are urging the U.N. secretary-general to launch an independent investigation into the killing of 18 Palestinians during a protest march last week against a stifling decade-old Israeli blockade of Gaza. Tunisian Ambassador Mohammed Khaled Khiari heads the Arab group at the United Nations and he says its members welcome Secretary-General Antonio Guterres' call for an independent and transparent investigation. Palestinian Ambassador Riyad Mansour told reporters after a meeting Thursday with Guterres that the U.N. leader's response was "positive." Mansour says Guterres expressed serious concern at the civilian deaths. Mansour says both the Arab group and Guterres prefer an independent investigation, but the Palestinian envoys adds that there are also other models of fact-finding missions.