Rafael Grossi, Director General of the International Atomic Energy Agency, stressed the necessity of IAEA inspectors' access to Iranian nuclear sites.

Grossi affirmed in press remarks that 'the inspectors' access is contingent on the progress of negotiations between Washington and Tehran.'

Follow the story: Director of the Atomic Energy Agency: Our inspectors' access to Iran hinges on progress of Washington-Tehran talks

He added, saying: 'So far, we have not been able to access, but I think we need to realize that this issue has become, to some extent, linked to and dependent on the ongoing negotiations between the United States and Iran and the memorandum of understanding.'