Thick fog and limited daylight is hampering efforts to find Iran's president, Ebrahim Raisi and other officials.
The convoy of three helicopters was on its way back to Tehran, and one was forced to make a "hard landing" due to the bad weather and fog near the border with Azerbaijan.
US Correspondent Richard Arnold told Mike Hosking “They still haven't found the crash site.”
Arnold said “Raisi is known as the ‘Butcher of Tehran’, he brought in the execution of thousands of political dissidents in the late 80s.”
LISTEN ABOVE.

Mike's Minute: The public service cut is to be admired
02:09

Mark the Week: This has been Chris Hipkins' worst week of the year
02:32

Mike's Minute: Aussie Labor have shown NZ Labour what not to do
02:09