Source Reuters: 

Regime's security forces have detained a relative of a Kurdish Iranian woman days before the anniversary of her death in the custody of the morality police that sparked the nationwide protests, a source close to the family said on Wednesday.

Fearing a revival of the unrest that rocked the Regime in Iran, clerical rulers have increased their clamp down on dissent aimed at deterring any gatherings on Mahsa Amini's death anniversary on Sept. 16.

"A group of security forces went to Amini's uncle Safa Aeli's home on Sept.  6th searched his car and house without having a court order and then arrested him ... they also confiscated some documents like his passport," said the source.

"Prior to his arrest, Aeli was followed by security forces for a week ... The family does not know where he has been taken."