Libyan rebels say they're closing in on Qadhafi
Libyan rebels say they're closing in on Moammar Qadhafi and issued an ultimatum Tuesday to regime loyalists in the fugitive dictator's hometown of Sirte, his main remaining bastion: surrender this weekend or face an attack.
Officials say Libyan rebels are not closing in on Zawiya, but others think differently, as CNN's Matthew Chance reports.