A VietJet plane has been diverted back to Australia after a passenger suffered a medical emergency on the way to Ho Chi Minh City.
Flight VJC92 was only in the air for an hour before it made a U-turn near Carnarvon on the Western Australian coastline after taking off at 10.30am local time.
The Boeing 787 Dreamliner is due to land back in Perth at about 1pm local time with paramedics already waiting on the tarmac.
A Perth Airport spokesperson told Daily Mail Australia the diversion was due to an onboard medical emergency but could not elaborate until the plane had landed.
The spokesperson said the same plane would likely fly out again on its original route once the situation was under control.
The connection between the two cities was launched by VietJet on November 21 last year with two return services per week.
This was later upgraded to four flights per week and competitor Vietnam Airlines followed suit with three flights a week.
The six-and-a-half-hour, non-stop flight is run by both companies using the Boeing 787 Dreamliner.

Perth Airport said passengers would likely fly out again on the same plane later on Thursday afternoon (pictured is the U-turn the plane made near Carnarvon on the WA coastline)

The VietJet plane was diverted to Perth on Thursday after a medical emergency (stock)