Indonesia rejects Australia Bali Nine prisoner swap offer,
Earlier Australia's Foreign Minister Julie Bishop confirmed the swap offer was among options being explored.
Andrew Chan and Myuran Sukumara, from the 'Bali Nine' drug-smuggling group, are due to be executed within days.
The men are due to be shot by firing squad.
A spokesman for Indonesia's attorney general said the execution date may be decided in a few days.
Ms Bishop had announced the offer to repatriate three Indonesian convicts in return for the two Australian men in a joint news conference with Prime Minister Tony Abbott.
"What we are seeking to do is have an opportunity to talk about options that might be available in the area of prisoner transfer or prisoner swap," she said.
The offer was made to Ms Bishop's Indonesian counterpart Retno Marsudi, who "undertook to provide that information to the president", Ms Bishop said.
The Australian government was exploring "every avenue that might be available to save the lives of these two men", she added.
Mr Abbott said that he was seeking another telephone call with Indonesian President Joko Widodo to attempt to persuade him to show the men mercy.
"I've put in a request. I can't guarantee that the request will be met, but I've certainly put in a request," said Mr Abbott.
"We respect Indonesia, we honour the friendship that we have with Indonesia, but we stand up for our values and we stand up for our citizens and these are Australian citizens in extremis."
Mr Abbott and Ms Bishop were joined on Thursday morning by MPs and members of the public for a candlelit vigil for the men outside the parliament building in Canberra.
Chan and Sukumaran were convicted in 2005 after being caught attempting to smuggle heroin from Bali to Australia.
Indonesia has some of the toughest drug laws in the world and ended a four-year moratorium on executions in 2013.
President Joko Widodo has said the drugs trade destroys lives in Indonesia and has adopted a hard line on convicted dealers.
Chan and Sukumaran left Kerobokan jail in Bali early on Wednesday morning and were flown to Nusakambangan, the high-security prison island where Indonesia conducts executions.
The date of their execution has not been announced but was expected to be this week. Al-Jazeera's Indonesia correspondent Step Vaessen said on Wednesday Mr Widodo told her the execution would not happen this week.
Earlier Australia's Foreign Minister Julie Bishop confirmed the swap offer was among options being explored.
Andrew Chan and Myuran Sukumara, from the 'Bali Nine' drug-smuggling group, are due to be executed within days.
The men are due to be shot by firing squad.
A spokesman for Indonesia's attorney general said the execution date may be decided in a few days.
Ms Bishop had announced the offer to repatriate three Indonesian convicts in return for the two Australian men in a joint news conference with Prime Minister Tony Abbott.
"What we are seeking to do is have an opportunity to talk about options that might be available in the area of prisoner transfer or prisoner swap," she said.
The offer was made to Ms Bishop's Indonesian counterpart Retno Marsudi, who "undertook to provide that information to the president", Ms Bishop said.
The Australian government was exploring "every avenue that might be available to save the lives of these two men", she added.
Mr Abbott said that he was seeking another telephone call with Indonesian President Joko Widodo to attempt to persuade him to show the men mercy.
"I've put in a request. I can't guarantee that the request will be met, but I've certainly put in a request," said Mr Abbott.
"We respect Indonesia, we honour the friendship that we have with Indonesia, but we stand up for our values and we stand up for our citizens and these are Australian citizens in extremis."
Mr Abbott and Ms Bishop were joined on Thursday morning by MPs and members of the public for a candlelit vigil for the men outside the parliament building in Canberra.
Chan and Sukumaran were convicted in 2005 after being caught attempting to smuggle heroin from Bali to Australia.
Indonesia has some of the toughest drug laws in the world and ended a four-year moratorium on executions in 2013.
President Joko Widodo has said the drugs trade destroys lives in Indonesia and has adopted a hard line on convicted dealers.
Chan and Sukumaran left Kerobokan jail in Bali early on Wednesday morning and were flown to Nusakambangan, the high-security prison island where Indonesia conducts executions.
The date of their execution has not been announced but was expected to be this week. Al-Jazeera's Indonesia correspondent Step Vaessen said on Wednesday Mr Widodo told her the execution would not happen this week.