Troops move on Red Cross kidnappers

Philippine troops have advanced towards a stronghold of the Abu Sayyaf group that has threatened to behead one of three aid workers it is holding hostage.Government forces were redeployed near a camp belonging to the armed group in the Indanan township on southern Jolo island on Wednesday, officials said.Al Jazeera's Marga Ortigas, reporting from Manila, said the governor of Sulu province, citing intelligence reports, said on national television that all three hostages were still alive.There has been no word from the Abu Sayyaf since the deadline passed at 06:00 GMT on Tuesday and there were indications the hostages were being moved deeper into the jungle, suggesting the group was preparing for battle, our correspondent said.The troop movement comes as the Philippine Red Cross asked the Abu Sayyaf for proof that the aid workers were alive.The three Red Cross workers - Mary Jean Lacaba, a Filipino national, Andreas Notter, from Switzerland and Eugenio Vagni, from Italy - were seized on January 15.