(AGI) Kuala Lumpur, July 19 - Puan Sri Siti Amirah, the83-year-old step-grandmother of Malaysia's prime minister NajibRazak, was among the passengers on the Malaysian Airlines MH17flight that was shot down over Ukraine. The news was reportedby Malaysia's Defense Minister, Hishammuddin Hussein, who wasSiti's cousin. Siti, once the second wife of Najib'sgrandfather Mohammad Noah Omar, was en route to Jogjakarta inIndonesia for the Eid al-Fit celebrations that mark the end ofRamadan. (AGI) . .