UN chief Ban Ki-moon has urged Libyan Prime Minister Baghdadi al-Mahmudi in a telephone call to stop the fighting and help improve humanitarian conditions.
Ban stressed "the urgent need to find a way out of the current fighting and alleviate the dire humanitarian situation and work out a transition that could bring peace to all Libyans."
He also said his special envoy to Libya, Abdul Ilah al-Khatib, was aiming to reach a peace deal for all Libyans.
Ban's office also said that Mahmudi had agreed that Khatib should be received in Tripoli "at an early date for urgent consultations."
Rebels have been fighting since February to oust longtime Libyan leader Muammar Qaddafi.
In addition to the NATO assistance, the West has thrown its diplomatic and financial support behind the rebel National Transitional Council, which has been recognized by about 20 countries including Britain and France.
compiled from agency reports