An Al-Birak official predicts `` drastic '' changes soon in Sirte and Bani Walid . He says loyalists no longer control parts of Sabha , Sirte 's birthplace . `` Fierce fighting '' is ongoing in the southwestern city of Sirte , he adds . He claimed , for instance , that Sirte 's airport and the nearby Ghardabiya air base already have switched hands . ` A `` final call '' is issued for Bani Walid forces to switch or face `` treason '' charges .
An Al-Birak official predicts `` drastic '' changes soon in Sirte and Bani Walid . He says loyalists no longer control parts of Sabha , Sirte 's birthplace . `` Fierce fighting '' is ongoing in the southwestern city of Sirte , he adds . A `` final call '' is issued for Bani Walid forces to switch or face `` treason '' charges .