Pilot of the missing Malaysia Airline passenger jet reportedly made a call just minutes before taking off from Kuala Lumpur.
With focus on the pilots after possible terror links, investigators are trying to find out who Captain Zaharie Ahmad Shah spoke to in the cockpit before taking off for Beijing.
Discovery of the person on the other end of the call would provide a lead to understand the mystery of the ill-fated passenger jet.
However, Malaysian authorities have not commented on the lead or confirmed a phone call took place, news.com.au reports.
This revelation comes after it was found that files from Shah's home flight simulator were deleted on February 3, just over a month before the Flight MH370 vanished.
Meanwhile, Malaysia's defence minister said that the authorities were trying to restore the files to see if it could provide any clue about what might have happened on the aircraft.
It has been 13 days since the ill-fated passenger jet vanished from civilian radar and the latest lead has arrived from Australian authorities, who have pointed to US satellite images showing debris potentially belonging to the plane.
The images point to an area of the southern Indian Ocean off Western Australia, one of the most isolated places in the world, the report added.