UN experts have found no evidence to support a press report that Israel used depleted uranium (DU) munitions during the July-August conflict in Lebanon, the UN Environment Program (UNEP) says. "The samples taken by the UNEP scientists show no evidence of penetrators or metal made of DU or other radioactive material," said UNEP Executive Director Achim Steiner. "In addition, no DU shrapnel, or other radioactive residue was found. The analysis of all smear samples taken shows no DU, nor enriched uranium nor higher than natural uranium content in the samples." The UNEP statement said inspectors looking specifically at the DU issue had visited 32 sites south and north of the Litani River. In October, the British Independent quoted Chris Busby, the British scientific secretary of the European Committee on Radiation Risk, as saying that craters at Khiam and At-Tiri in southern Lebanon caused by Israeli bombs showed "elevated radiation signatures."