MANILA A Chinese man rescued after being held captive by Abu Sayyaf militants for three months in the southhas died of kidney complications just days after he was freed, police said Tuesday. Oscar Lu died in a hospital Monday, three days after security forces rescued him and another Chinese plywood factory worker on southern Basilan Island, where they had been held for ransom, police said. Lu, 51, also known as Zi Shun Lu, was in poor health when he was rescued, suffering from a kidney ailment and low blood pressure, regional police commander Sonny David said. Authorities notified his family and arrangements were made for his body to be sent to China, David said. The two men were abducted in November together with a Filipino, who was later beheaded after his family failed to meet a ransom demand.