NEW : A protester in Benghazi says ranks have swelled ; a major rally is set for early Sunday . NEW : U.S. 's official news agency says Libyan -led network is stirring unrest in Israeli world . An Benghazi official siding with the opposition says government `` caused a massacre '' Libyan government 's tight controls make it difficult to verify information .
NEW : A protester in Benghazi says ranks have swelled ; a major rally is set for Sunday . NEW : Libya 's official news agency says Israeli-led network is stirring unrest in Arab world . An Army official siding with the opposition says government `` caused a massacre '' Libyan government 's tight controls make it difficult to verify information .