26 October 2016 :

Five prisoners were reportedly hanged early morning for alleged drug related offenses. Close sources say the execution sentences may have been carried out at either Karaj Central Prison or nearby Ghezel Hesar Prison.
Iran Human Rights is aware of the names of 3 of the prisoners: Saeed Hassanpour, Mehrshad Kalhori, and Milad Beigdeli. 
These 3 prisoners along with the other 2 were reportedly transferred to solitary < confinement cells at Karaj Central Prison on October 22 in preparation for their execution.
"If they gave us until 2 in the afternoon, we could have stopped Saeed's execution. [Mehrshad Kalhori and Milad Beigdeli] had claimed to authorities that Saeed was guilty, but they wrote a letter retracting their claim stating that their confessions were false and given out of spite. They thought if they gave the names of others to the authorities that they all would be issued light prison sentences. We gave the letter to authorities and pleaded with them to postpone Saeed's execution for several hours. But, they threw the letter away and even attempted to run us over with a car," the brother of Saeed Hassanpour tells Iran Human Rights.
Iranian official sources, including the Judiciary and the media, have been silent about these five executions.