URGENT  Rebel operation in Tripoli to isolate Kadhafi: spokesman

DVBP095 3 W 0119 LBY /AFP-VG93 Libya-conflict-Tripoli URGENT  Rebel operation in Tripoli to isolate Kadhafi: spokesman BENGHAZI, Libya, Aug 21, 2011 (AFP) - A rebel operation called "Mermaid" is underway Sunday in the capital Tripoli to isolate Moamer Kadhafi and force his surrender or departure, a rebel spokesman told AFP. Spokesman Ahmed Jibril said "operation mermaid" is a joint effort between the Benghazi-based rebel National Transitional Council, insurgents fighting in and around Tripoli and NATO forces. "The operation is also in coordination with NATO," he said, adding would last several days "until we surround Kadhafi" to force him "either to surrender or to escape." hba/dsg/hkb AFP 211052 GMT AUG 11