The Bali Nine leaders Myuran Sukumaran and Andrew Chan, convicted for drug trafficking in Indonesia, were moved to Nusakambangan Island Wednesday ahead of their scheduled executions this week.
The men have all but exhausted legal appeals and the new Indonesia President Joko Widodo has rejected calls for clemency.
Sukumaran and Chan were convicted in 2006 for leading a group of Australian drug mules who became known as the "Bali Nine".
The men are expected to be given 72 hours notice before facing a firing squad.
Chan and sukumaran's plane about to take off from Bali airport on their final one way journey #Bali9 @newscomauHQ
UPDATE 1400AEST: A ferry is transporting armoured police vehicles carrying Sukumaran and Chan to the prison island of Nusa Kambangan.
Update 1130AEST: The first images of Sukumaran and Chan being transported have emerged.
Australians have been vocal in their support of Chan and Sukumaran. On Wednesday media outlets including Queensland's Courier Mail made a final plea to Indonesia's president to call off the executions.
Today's @couriermail front page. #bali9
Prime minister Tony Abbott wrote on Facebook that despite the best diplomatic efforts the Indonesian government was "hardening" against final calls for mercy.
And there were Australians making final calls with the #IStandForMercy campaign.
Andrew Chan and Myuran Sukamarin transferred. Our thoughts with them and their families as we call again for mercy. #IStandForMercy
#IStandForMercy. Please @jokowi_do2, stand with us?
I've tried hard to find the right words to express everything I feel, but it's just too sad tonight. So I'll just say this #IStandForMercy
Stomach churning. Thoughts with both #Chan & #Sukumaran in these hours. And their families and friends.