Around half the group of young Christian musicians has been released after being kept imprisoned for months
In 2021, the European Union sanctioned Eritrea for its “serious human rights violations".
"The Eritrean government is yet to give a reason for arresting the clergymen," their statement reads.
According to analysts, the recent seizures are in retaliation for the Catholic church’s calls for reform in the country.
The reports was announced back in November. Its full version has recently been released.
“Individuals who are arrested for religious reasons are systematically subjected to ill-treatment and torture,” the OHCR said.
Ruled by a military dictatorship, Eritrea has an estimated 500 Christian prisoners of faith.
The Nobel Prize committee refuses to revoke Prime Minister Abiy Ahmed's Nobel Peace Prize despite accusations of ethnic cleansing.
UN agencies estimate that hundreds of thousands of Eritreans have fled the country to Ethiopia, Sudan and Egypt in recent years.