Hundreds of followers have gathered to pray at Sydney's Baha'i temple for seven men and women who have been jailed in an Iranian prison for seven years.
The group was jailed for espionage and insulting the religious sanctities of Iran's Muslim government.
They were sentenced to 20 years in some of Tehran's most dangerous prisons.
Followers at the temple said the group - made up of leaders in Iran's Baha'i community - did nothing more than practice their faith.
Pleas to Iran for clemency from the United Nations, as well as Australia's current and previous foreign ministers, have gone unheard.
Now, Sydney's community has made another plea to secure the group's release.
Mehrzad Mumtahan designed a heart-shaped tribute to the imprisoned Baha'i followers. His uncle was one of them.
"This installation was inspired by a line in one of the poems by one of the prisoners which says, 'If I'm in this prison now, it's only because I've committed the crime of love again'," Mr Mumtahan said.
Mr Mumtahan feared for the group's safety.
"The treatment that the Baha'i prisoners receive in Iran is much harsher unfortunately that other prisoners," he said.
Since the Iranian revolution in 1979, more than 200 Baha'i leaders have been executed by Iranian authorities.
Mr Mumtahan said age was no boundary to the discrimination the Baha'i face.
"Infants have been put in prison with their mothers, and the Iranian regime destroys their cemeteries. So even the people who have died, they have no peace. Children are harassed at school, the youth cannot go to universities, they're barred from higher education."
Now, Mr Mumtahan, along with the rest of the Baha'i community, is hoping the Iranian government will heed their pleas for clemency.
The Iranian government has given no indication the group of detained Baha'i leaders will be released before they have served their prison sentence.
