21 February 2018 :

According to a close source, a prisoner was hanged at Zanjan Central Prison. The prisoner, identified as Majid Keykavusi from Marand, was sentenced to death on murder charges.
An anonymous source told Iran Human Rights, "In 2012, Majid Keykavusi got into a fight with someone who owed him 9 million Tomans and he accidentally kills the debtor."
The prisoner was transferred to Zanjan Central Prison 20 days ago to be executed.
The execution of this prisoner has not been announced by the state-run media so far.