NOUAKCHOTT - Seven foreign hostages are still alive after an Algerian military raid on a siege at a gas plant on Thursday, Mauritania's ANI news agency reported, citing one of the al-Qaida-linked kidnappers.ANI said a spokesman for the kidnappers told the agency those hostages were three Belgians, two Americans, a Japanese and a Briton. No details were given for the Algerians who were also captured.A number of hostages and kidnappers were reported killed in an air strike by the Algerian army on the facility.