Focus will be on sites thought to be from early 2000s, before Iran signed the 2015 nuclear deal with world powers, which Tehran says IAEA inspectors have no legal basis to inspect

Security Council expected to reject US call to renew ban on weapons sales to Tehran; atomic agency chief says Iran still blocking inspectors from some nuclear sites

Motion calls on Tehran to provide IAEA inspectors with access to two sites suspected of undeclared nuclear activity in the early 2000s; Iran has blocked access for months

Diplomats set to advance UN resolution, the first to criticize Tehran since 2012, after inspectors barred from suspicious facilities flagged by Jerusalem

Experts say Tehran's 'breakout time' to an atomic weapon may well have fallen to a matter of months

Foreign Ministry in Tehran rejects 'unfounded' claim by UK, France, Germany that Tehran is violating the 2015 agreement

Parliamentary speaker responds to UK, France, Germany launch of dispute process charging Iran with failing to uphold terms of 2015 nuclear agreement, saying it's 'unfortunate'

Tehran says it will not observe curbs on uranium enrichment, stockpiles, research and development, but cooperation with UN watchdog will continue

Rafael Grossi says he'll continue pressing Tehran about uranium particles found at Turquzabad facility described by Netanyahu last year as a 'secret atomic warehouse'

With radioactive material found at location said to be the compound Israel brought to world attention, IAEA says it is 'essential' that Tehran help resolve matter