7.05pm ET: There's some very impressive singing in central Benghazi, accompanied by celebratory gunfire, right now, based on al-Jazeera's footage.Libya resolution: UN security council air strikes vote - as it happened
An al-Jazeera English reporter, Tony Birtley, later says: "I haven't been hugged by so many people since my daughter's birthday party."
7.11pm ET: US enforcement of a no-fly zone in Libya could begin by Sunday or Monday, according to anonymous US officials quoted by AP, and would involve "jet fighters, bombers and surveillance aircraft".
7.16pm ET: Italy announces it is opening its air force and naval bases in Sicily for operations against Libya - the obvious spot to base US and British jets.
The Berlusconi government may have had relatively warm relations with Libya, but Italy's Nato obligations gave it little choice but to allow other members to use its bases.