The US and France are joined in their determination to "finish the job" in Libya, Barack Obama has said at the G8 summit in France.
The US president said that meeting the UN resolution could not be achieved while Libyan leader Col Muammar Gaddafi was still in power.
Mr Obama was speaking following talks with French President Nicolas Sarkozy.
Meanwhile, G8 leaders are expected to announce a $20bn (£12bn) package to support new Arab democracies.
The leaders of Egypt and Tunisia are due to meet President Obama and other G8 and European Union leaders who are discussing how to aid their new governments, after recent uprisings.
However, it is unclear what the money would go for, or whether the figure includes money already promised for the region.
http://www.bbc.co.uk/news/world-africa-13572830
Note: Update Record, 27 May 2011 Last updated at 09:52 GMT