France's President Nicolas Sarkozy (R) attends a video conference with US President Barack Obama, German Chancellor Angela Merkel and British Prime Minister David Cameron at the Elysee Palace in Paris, March 28, 2011.[Photo/Agencies]

PARIS -- French President Nicolas Sarkozy and British Prime Minister David Cameron said that the military intervention by coalition force would continue in Libya, but only political solution is "sustainable," according to a joint statement published on Monday.

"Our countries are determined to continue to implement resolution No. 1973 of the Security Council to protect the people of Libya ... Only when the population are safe, no threat of attacks are over them and the objectives of resolution No. 1973 have been met, that military operations will cease," said the statement issued by the Elysee Palace.

In the statement, France and Britain repeated that no foreign ground force will enter the North African country. "We reaffirm our commitment in the strongest term to the sovereignty, independence, territorial integrity and national unity of Libya."

They also recognize that military method can't solve Libya's problem ultimately, therefore the two leaders emphasized the importance of "political solution," saying that is "sustainable" and "belongs to the Libyan people."

Speaking of the London meeting expected to steer the coalition intervention from a political angle, the statement restated the lack of legitimacy of Gadhafi's regime.

"Gadhafi must leave immediately. We call on all his supporters to leave before it's too late," it said, suggesting "a transitional process" to be "organized around the National Transition Council (NTC)," a political body of Libya rebels, which was first recognized by France as the lawful representative of Libyan people in early March.  

The joint statement urged the NTC to establish a national political dialogue  and to lead transition process.

According to the statement, France, Britain, the United Nations, the European Union, the African Union, NATO and the Arab League will participate the London meeting on Tuesday. Besides the issue of how to advance the coalition operation, the concerned countries and organizations will also discuss "emergency aid" to address " humanitarian crisis" in Libya.