Three men were hanged in the past two days, the AFP news agency reports, citing the Iranian judiciary's news agency Mizan.
All three men were arrested in connection with the nationwide protests that erupted and culminated in the first two weeks of January this year. The men had been sentenced to death on similar grounds.
On Monday, Ali Fahim was hanged, convicted of what the Islamist regime in Iran calls collusion with Israel and the US. Iran claims that Ali Fahim, like other convicted protesters, participated in an "enemy-directed" terrorist activity.
Iran's executions and the legal processes that precede them have been condemned by international human rights organizations.
