An airplane flown by Jetstar made an emergency landing in central Japan on Saturday after receiving an apparent bomb threat from an international caller, public broadcaster NHK reported, citing police sources. Tokyo's Narita airport received the call at 6:20 a.m. Japan time from a man in Germany speaking in English that he had put a bomb on the aircraft.<br />'' <br />'' The flight was then diverted to Chubu airport. All 136 passengers and six crew members aboard evacuated the aircraft there, informed the airport officials.<br />'' <br />'' At least five people were lightly injured while evacuating the plane via emergency chutes. According to reports, the caller claimed to have placed 100 kilograms (220 pounds) of plastic explosives in the aircraft's cargo hold and demanded to speak with the "manager" or he would set off them off. The authorities found no explosives even after extensive search.<br />'' <br />''The Chubu airport spokesperson said flights had resumed at the facility following a four-hour suspension and the incident is being investigated.<br />