Keyvan Rahimian, a member of the Baha'i faith in Iran, has been detained by officers from the Intelligence Ministry and subsequently transferred to Evin Prison.
His daughter, Jina Rahimian, reported the arrest on her Instagram page on July 19, explaining that the intelligence officers had arrived at their Tehran residence and taken her father into custody.
In her post, Rahimian added, "Dad called and said he's in Evin and he's OK."
There was no official information regarding the charges that led to the arrest of Rahimian, who has previously been detained for his role as an educator at the online Baha'i University. He was sentenced in 2011 to a five-year term of punitive imprisonment for his association with the faith. He was released in September 2017.
Iran accuses Baha'is of having links to Israel, where the city of Haifa hosts a center of the Baha'i faith. Baha'i leaders reject the allegations and say they are used as a pretext to persecute members.
There are some 300,000 Baha'i adherents in Iran and an estimated 5 million followers worldwide. In Iran, where their faith is not officially recognized in the constitution, its leaders say they face systematic persecution.
Iranian Supreme Leader Ayatollah Ali Khamenei has on several occasions called the Baha'i faith a cult and, in a religious fatwa issued in 2018, he forbade contact, including business dealings, with followers of the faith.
Since the Islamic Republic of Iran was established in 1979, hundreds of Baha'is have been arrested and jailed for their beliefs. At least 200 have been executed or were arrested and never heard from again.
Thousands more have been banned from receiving higher education or had their property confiscated, while vandals often desecrate Baha'i cemeteries.