The mother and sister of condemned Australian Myuran Sukumaran have issued a tearful plea for his life to be spared.

“They have rehabilitated. They are doing a lot of good things in here,” Myuran’s mother Raji Sukumaran told reporters after visiting her son in Kerobokan jail on Friday.

“They are good children. Please don’t kill them.”

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Sukumaran, 33, and Andrew Chan, 31, face execution by firing squad within weeks for their role in the 2005 Bali Nine heroin-smuggling plot.

Sukumaran’s sister Brintha said her brother had just sold two portraits of a fellow inmate to fund her surgery for pancreatic cancer.

“He’s doing everything he can to help people inside, but no one’s listening to us,” she said, sobbing.

“It’s not fair.

“We don’t have much time and he’s scared. I can see it in his eyes. He’s so scared.”

With the Australian pair’s legal avenues exhausted, the only man who can save them is Indonesia’s President Joko Widodo, who is denying mercy to all death row drug offenders, regardless of rehabilitation.

Asked what she would say to the president, Brintha pleaded: “Please don’t kill my brother.

“He’s the only one who can help us.”