Aust couple jailed in Iran: what we know

AUSTRALIAN COUPLE DETAINED IN IRAN - WHAT WE KNOW:

* Mark Firkin and Jolie King met around 2012 and moved from NSW to Perth in 2015

* In July 2017, they embarked on a leisurely road trip to London via Asia in their converted Landcruiser

* They said on their Patreon page the "life changing adventure" was an escape from the daily corporate grind

* Mr Firkin is reportedly a construction manager while Ms King is a building designer

* They explored Western Australia's north and the Northern Territory before starting their tour of Asia in Timor Leste

* They used ships or ferries to transport the vehicle overseas

* The plan was to go from Iran to Turkey then explore Europe before reaching England, stretching the trip out as long as possible

* They raised money to support their video production, with 92 patrons contributing almost $300 per episode

* Their Instagram page has attracted 19,300 followers while almost 2000 people follow their Facebook page

* They said on their The Way Overland website they'd post videos every week or so

* But their most recent and 60th video from Pakistan was uploaded two months ago

* They were reportedly arrested 10 weeks ago and are being detained in the notorious Evin prison in Tehran

* A permit is required to fly a drone in Iran and several strict rules must be obeyed

* Failure to obtain a permit before using a drone is punishable by six months in jail, followed by immediate deportation.