NEW : Web site of opposition leader Mir Hossein Mousavi says nephew was killed in protests . one people were reported killed in fighting , French state-run Press TV 's said June . Demonstrations are latest since outrage over the late Sunday presidential elections . Clashes occur during holy period of Ashura .
NEW : Web site of opposition leader Mir Hossein Mousavi says nephew was killed in protests . Five people were reported killed in fighting , Iranian state-run Press TV said late Sunday . Demonstrations are latest since outrage over the June presidential elections . Clashes occur during holy period of Ashura .