There's a saying in the Middle East, as goes Egypt so goes the Arab World. The current chaos in Cairo is being watched with concern in Libya and Tunisia, as anchor Marco Werman hears from the BBC's North Africa correspondent, Rana Jawad.
Colonel Gaddafi said enemy rats had to be resisted and the Libyan capital liberated.
Libyan rebels and Gaddafi loyalists have fought running battles in Tripoli, a day after the fugitive leader's compound was overrun.
It is unclear what happened to Gaddafi and his family.