Tehran has announced its plans to remove as many as 27 surveillance International Atomic Energy Agency (IAEA) cameras installed under provisions of the Joint Comprehensive Plan of Action, Director-General Rafael Mariano Grossi told the reporters at a Vienna press briefing on Thursday.

In addition to the cameras, Tehran will also remove monitoring equipment including 'online enrichment monitoring and flow detectors' according to Grossi.

The move delivers another blow at efforts aimed at reviving the Iran nuclear deal and comes after a resolution from the IAEA Board of Governors criticised Iran for uranium particles at undeclared sites.