Ireland has made statements concerning Eritrea to the UN Human Rights Council twice this year.
Christians make up merely one per cent of the total population of Indonesia.
Father Stan Swamy was suffering from Parkinson's disease and had recently caught the Covid.
Through prison sentences, governments prevents Christians from spreading the Gospel and discourage others confessing their faith.
Prison conditions are some of the harshest in the world, with inmates kept in shipping containers and believers often tortured.
The two men have appealed their conviction and sentence.
Some 171 Eritrean Christians have been freed from prison since last August.
Eritrean troops are participating in serious human rights violations and violence that may amount to genocide.