Col. Gaddafi's forces are reported to have recaptured Brega town and said to be threatening Benghazi. Reports from Cairo says, Gaddafi's forces backed by tanks and artillery guns stormed into Brega after speeding down the key eastern coastal highway. They are now within striking distance of the main opposition held city of Benghazi.There were conflicting reports on Ras Lanuf, the main oil producing town, which saw pitched battle on Friday. After an intense fight, Gaddafi's forces held the town while the rebels occupied the oil terminals. But in a fresh attack this morning, Gaddafi's forces made the rebel fighters to retreat. The fall of the town was confirmed by Libya's former interior minister Gen Abdul Fateh Younis, who has defected to the rebels. But he vowed that his fighters would launch a counter-attack latest by tomorrow.The near rout of the opposition forces came as Arab League foreign ministers are meeting in Cairo to discuss a no-fly zone over the country to ramp up pressure on Gaddafi. Calling for a no fly zone over Libya, Arab League chief Amr Mussa and said he wants the group to play a role in imposing it. He said a humanitarian action included a no-fly zone and supporting of the Libyan people in their fight for freedom against a regime that is more and more disdainful.A UN mission was also due in Libya to evaluate the country's humanitarian needs.As the sea-saw battle continued in Libya, US President Barack Obama has warned that the noose around Libyan ruler is tightening. In his first indication of a US tilt towards Libyan opposition, Obama said he will appoint an envoy to Libyan opposition forces as part of efforts to change the balance of the military situation in the war-torn country.