Australian bloggers Jolie Kinga and Mark Firkin held in Iran released

An Australian travel-blogging couple who were last month revealed to be detained in Iran have been released following "very sensitive negotiations" with Tehran, Australian foreign minister Marise Payne said Saturday.

Perth-based Jolie King and Mark Firkin have been returned to Australia, Payne said, but a third Australian citizen identified as having been recently arrested by Iranian authorities remained in detention.