CNN 's Greg Botelho contributed to this report . NEW : U.N. chemical weapon inspectors will investigate two 'confidential ' locations in Syria . Syrian Observatory for Human Rights says the death toll may rise . The blast occurred in the Wadi Aldahab neighborhood in Homs , the group says . Comment:
NEW : U.N. chemical weapon inspectors will investigate two 'confidential ' locations in Syria . Syrian Observatory for Human Rights says the death toll may rise . The blast occurred in the Wadi Aldahab neighborhood in Homs , the group says . Comment: