BENGHAZI (AFP) - Turkish Foreign Minister Ahmet Davutoglu urged other countries to quickly unfreeze Libyan state funds for rebel forces on a visit to the eastern city of Benghazi on Tuesday. Davutoglu's remarks came as anti-regime fighters launched a massive offensive on strongman Moamer Gaddafi's Tripoli compound, while the veteran leader's son refuted reports of his own arrest. "The Libyans are urgently in need of financial resources," Davutoglu said at a joint news conference with National Transitional Council (NTC) head Mustafa Abdel Jalil in the eastern rebel bastion. Davutoglu said such funds were necessary "to create a free and democratic Libya." The Turkish minister added that NATO would continue its military campaign in the country until "security is fully established in Libya". Turkey is the only Muslim-majority member of NATO. He also stressed the importance of preserving Libya's unity and territorial integrity, and offered Libya "the full support of the Turkish people." The United States has pressed for Libyan leader Muammar Gaddafi to step down, but a leadership vacuum raises concerns about the security of Libya's weapons stockpiles and the danger of them falling into the hands of adversaries, officials said on Monday. Libyan rebels have taken over most of Tripoli, Gaddafi's location is unknown, and great uncertainty exists about who will eventually end up in charge of the country. House Intelligence Committee Chairman Mike Rogers warned of security concerns while Gaddafi's rule crumbles. "Even after Gaddafi is out of power we will have to step up and lead to ensure US national security interests are safeguarded," Rogers, a Republican, said in a statement. "In particular, we must ensure that Gaddafi's stockpiles of advanced weapons, chemical weapons and explosives don't fall into the wrong hands." Aides to Libyan leader Moamer Gaddafi made "desperate" attempts to negotiate with US officials just before the massive offensive that the rebels mounted at the weekend, US officials said Monday. "There have been lots of feelers from lots of folks claiming to represent Gaddafi," including "more desperate ones in the last 48 to 24 hours," State Department spokeswoman Victoria Nuland told reporters.