Prime Minister Najib Razak's step-grandmother Puan Sri Siti Amirah was one of the 43 Malaysians who are believed to have perished when Malaysia Airlines (MAS) flight MH17 crashed in Ukraine, yesterday.

The Star Online which quoted a family spokesperson, said, Siti was travelling alone on her way back to Jogjakarta, Indonesia from Amsterdam and intended to transit at Kuala Lumpur International Airport.