Iran and the IAEA announced an agreement in March on re-installing surveillance cameras introduced under a deal with major powers in 2015 but removed at Iran's behest last year.
Only a fraction of the cameras and other monitoring devices the IAEA wanted to set up have been installed.
Iran's production of uranium enriched to up to 60% has slowed to around 3 kg a month from about 9 kg a month previously, a senior diplomat said.
"Of course, Iran claims (the slowdown in enrichment to up to 60%) as a positive, but more HEU (highly enriched uranium) is still more HEU," one Western diplomat said.
CAMERAS WITHOUT FOOTAGEIran's stock of uranium enriched to 60% is now almost three times the roughly 42 kg that by the IAEA's definition is theoretically enough, if enriched further, to produce a nuclear bomb.
Persons:
Rafael Grossi, State Anthony Blinken, Francois Murphy, Andrew Cawthorne, Ed Osmond, William Maclean
Organizations:
Reuters, International Atomic Energy Agency, IAEA, Governors, State, Agency, Thomson
Locations:
Iran, VIENNA, Tehran, United States, U.S, centrifuges, Isfahan, Esfahan