Violent clashes reportedly broke out late Sunday in Tripoli's central Green Square.
In a televised address just a few hours ago, Saif El Islam Gadaffi said his father would stand firm, and the country could plunge into civil war if the protests don't stop.
He said foreign media, Islamists, even drug addicts were part of a plot to bring down the government, and break up the country.
Meanwhile, demonstrators in Benghazi claim to be in control of the city, despite yet another brutal crackdown.
Human Right Watch says at least 233 people have died - with security forces continuing to use force to end the demonstrations.
Al Jazeera's Tom Ackerman has the latest.
