The embarrassing scene was witnessed by the country’s Interior Minister, representatives of Ayatollah Khamenei’s office, and other state officials.
The semi-official news agency Tasnim identified the offender as Ayoub Alizadeh, a member of the country’s armed forces.
In an interview with state-run television IRIB, the provincial governor said he did not know the offender personally.
An official was captured on tape slapping a newly appointed Iranian governor on stage during an event over the weekend.
Zeinolabedin Khorram, the new governor of East Azerbaijan province, was on stage delivering a speech at the Imam Khomeini Mosque in the northeastern city of Tabriz when the incident took place.
A video posted online shows a man calmly walking up to Khorram, slapping him in the face and then shoving him.
Immediately, security guards ran toward the offender, pulling him off stage.
Watch video HERE