1.   The hijacker, who threatened a stewardess with what looked like an ice pick, has demanded the plane return to Tokyo.

2.   The hijacker, who threatened a stewardess with what police said looked like an ice pick, has demanded the plane return to Tokyo.

3.   The hijacker, who identified himself as Saburo Kobayashi, threatened a stewardess and demanded the plane refuel and return to Tokyo, according to national broadcaster NHK.

4.   The hijacker, who was reportedly travelling in business class, reportedly tied up a flight engineer after threatening the stewardess with the icepick.