Four Palestinians died from gunshots and a Jewish settler burned to death when his car was ignited by a suspected gasoline bomb in one of the bloodiest days since the Arab uprising in the occupied territories began 15 months ago.

While Israeli officials reacted Wednesday to U.S. charges of human rights violations, another 28 Arabs were shot and wounded by military gunfire in a prison riot and during clashes in the occupied territories.Army Radio said the Jewish settler died when flames engulfed his Peugeot van as he was driving to his home in the West Bank settlement of Alfe Menashe.