Keshavarz was previously arrested in June, coinciding with the 12-day war with Israel, and was sentenced to death by the judiciary of the Islamic Republic on charges of "espionage for Israel."
On the evening of December 17, he was transferred from the general ward of Urmia Prison to solitary confinement.
Until now, no news or reports about this political prisoner had been published, and his name had not appeared in media or human rights organizations.
The Kurdistan Human Rights Network, in a report, introduced Keshavarz as an architecture student at Shahrood University from Isfahan and stated that in June of this year, during a trip to Urmia, he was arrested by agents of the IRGC Intelligence Organization.
According to this report, quoting an informed source, Keshavarz was held for a week in the IRGC Intelligence detention center in Urmia, subjected to interrogation and torture to extract a forced confession of "espionage for Israel," and then transferred to Evin Prison.
According to the source, he was held in Evin Prison during the Israeli bombing of the prison and was subsequently transferred to another detention center.
The source, whose identity was not disclosed, added that after completing the interrogation period, Keshavarz was transferred to Urmia Central Prison and in late summer, by Branch One of the Urmia Revolutionary Court, headed by Sajad Dousti, he was sentenced to death on charges of "espionage for Israel."
According to the source, due to threats from security interrogators, Keshavarz and his family had refrained from informing the public about this case.
It was also reported that in recent days, the prisoner was informed that the verdict issued by the Special Court for Espionage Crimes had been confirmed, and at the same time as his transfer to solitary confinement, his family was summoned to the prison for a final visit.
After the 12-day war, the Islamic Republic arrested, tried, and in some cases executed many citizens on charges of "espionage" or "collaboration" with Israel.
Iranian authorities have stated that after this conflict, which was also accompanied by U.S. airstrikes on Iran’s nuclear facilities, more than 700 people were arrested on suspicion of espionage or collaboration with Israel.