Indonesia's Rajawail Corporation has denied allegations that its CEO Peter Sondakh had anything to do with former prime minister Najib Abdul Razak's plans to fly off to Indonesia.

In a statement, the group said Sondakh is currently on holiday outside of Asia, and was not in communication with anyone in Malaysia.

"Neither Sondakh nor Rajawali group is aware of the flight itinerary of a Premiair jet by any party," it added. Premiair is the jet charter company that Najib was reportedly going to use to travel...