The New Straits Times, quoting an anonymous source, had reported Saturday that co-pilot Fariq Abdul Hamid made a call which ended abruptly, possibly "because the aircraft was fast moving away from the (telecommunications) tower".
There had also been unconfirmed reports of calls by the Malaysia Airlines plane's captain Zaharie Ahmad Shah before or during the flight.
Malaysian Transport Minister Hishammuddin Hussein told reporters Sunday that authorities had no knowledge of any calls made from the jet's cockpit.
"As far as I know, no," he said when asked if any calls had been made.
However, he added that he did not want to speculate on "the realm of the police and other international agencies" investigating the case.
AFP