( CNN ) Two Australians held by Indonesian authorities for nearly a decade appear to be just days away from execution by firing squad . Myuran Sukumaran and Andrew Chan , members of the so-called `` Bali Nine '' sentenced on drug smuggling charges , were transferred Wednesday from prison to a maximum security facility where they will be isolated before being put to death . Australia has repeatedly appealed for clemency for the pair . They have been jailed since April 2005 for a failed bid to smuggle more than 8 kilograms of heroin from Bali to Australia . OPINION : Why executions wo n't win Indonesia 's drug war . Australian Prime Minister Tony Abbott on Wednesday said `` Australians are feeling sick in their guts at the prospect of execution for these two . '' `` We abhor drug crime , but we abhor the death penalty . We think that these two Australians deserve to be punished , but they certainly do n't deserve to be executed , '' he said . The Prime Minister said people should not let anger affect Australians ' relationship with Indonesia . The two men will be given 72 hours notice of their impending appointment with a 12-member firing squad once they arrive on the island of Nusakambangan . But precisely when is unclear . They are among a number of people from different countries who are also scheduled for execution . The Bali Nine were arrested after Indonesian police received a tip from Australian Federal Police . Chan , 31 , was called the ringleader of the plot , and Sukumaran was described as Chan 's collaborator in the scheme . Seven other people who participated in the plan are serving lengthy prison sentences . Police caught four people at the Denpasar airport with more than 8 kilograms of heroin strapped to their bodies . Another four -- including Sukumaran -- were arrested at a hotel in the village of Kuta . Chan was detained after a boarding a plane to Sydney -- he was n't carrying any drugs but was named by others as the mastermind of the plot . The Indonesian administrative court last week dismissed a case filed by lawyers of the two Australians against President Joko Widodo . The attorneys wanted a review of the president 's decision to deny them clemency . Todung Mulya Lubis , who represents the pair , said a challenge had been submitted to the administrative court and lawyers were still waiting for a court summons . `` There should be no execution as long as there is a legal process going on , '' Lubis said . Sukumaran and Chan have become model prisoners during their time behind bars , according to fellow inmates and the jail 's chief warden . Sukumaran is studying fine arts and has set up a class for fellow inmates . Chan has found spirituality , which he uses to counsel inmates with drug problems . Their rehabilitation is genuine , Australian Foreign Minister Julie Bishop has said . `` Andrew and Myuran are the model of what penal systems the world over long to achieve , '' Bishop told the Australian Parliament in February . Indonesia has long taken a tough line on drug smugglers , and Widodo has made it clear he does n't intend to introduce a policy of leniency . In December , six prisoners were killed by firing squad , including five foreigners from Brazil , the Netherlands , Malawi , Nigeria and Vietnam . Brazilian President Dilma Rousseff issued a statement saying the execution of one of her countrymen had `` severely affected '' relations with Indonesia . CNN 's Camille Feanny and Jennifer Deaton contributed to this report .
Nigeria PM : We hate drug crime , but we hate capital punishment , too . Prisoners will be notified 72 hours before execution is to take place . Two men to be shot are considered the leaders of failed heroin-smuggling plot .