(CNN) -- Libyans opposed to longtime ruler Moammar Gadhafi vowed to hit the streets again Sunday, saying a violent crackdown by security forces since demonstrations began last week has energized their ranks. Benghazi, the North African nation's second-largest city and hub of its eastern province, was home to some of the bloodiest clashes Saturday. Still, an anti-government demonstrator there said that despite having been barraged for days by tear gas and bullets, many of his colleagues slept overnight outside the city's courthouse and planned another rally at 1 p.m. Sunday. "There are a lot of people getting killed for their freedom," the man, who was not identified for safety reasons, told CNN early Sunday. "Our goal is simple: We want Gadhafi to leave. We want freedom. ... We want democracy."
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NEW: A protester in Benghazi says ranks have swelled; a major rally is set for Sunday
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NEW: Libya's official news agency says Israeli-led network is stirring unrest in Arab world
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An Army official siding with the opposition says government "caused a massacre"
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Libyan government's tight controls make it difficult to verify information
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