Libyan opposition forces have launched a dual offensive in the Western mountains, increasing pressure to isolate Muammar Gaddafi's stronghold of Tripoli.<br /><br />Opposition fighters advanced toward the towns of Gharyan and Az-Zawiyah on Saturday, attempting to cut off the southern coastal route from Tunisia that Gaddafi uses for supplies.<br /><br />The ground attacks come after NATO planes had been hitting targets in these areas.<br /><br />Al Jazeera's Zeina Khodr reports from al-Aziziya, Libya.
