Iranian President Masoud Pezeshkian put into effect on Wednesday a law passed by parliament last week to suspend cooperation with the UN nuclear watchdog, the IAEA, Iranian state media reported.
Iran has threatened to halt cooperation with the IAEA, accusing it of siding with Western countries and providing a justification for Israel's air strikes, which began a day after the IAEA board voted to declare Iran in violation of obligations under the Nuclear Non-Proliferation Treaty.
The law stipulates that any future inspection of Iran's nuclear sites by the International Atomic Energy Agency needs approval by Tehran's Supreme National Security Council.
"We are aware of these reports. The IAEA is awaiting further official information from Iran," the IAEA said in a statement.
Separately, Iranian Foreign Minister Abbas Araqchi said in an interview with CBS News that the US bombing of Iran's key Fordow nuclear site has "seriously and heavily damaged" the facility.
US President Donald Trump's administration has announced an expansion of secondary sanctions it can impose on entities and countries that maintain business ties with Iran around the world as Washington significantly ratchets up economic pressure on Tehran with the war nearing its six-month mark.
British police investigating a car crash in northeast England over the weekend that killed seven people, including two police officers, said on Monday they had arrested 12 people in a probe into organised criminal activity linked to the incident.
The United States removed Syria from its list of state sponsors of terrorism on Monday, lifting what Damascus says was the last major impediment to investing in the country as Washington deepens ties to the new Syrian government.
A landslide at a landfill in Guinea's capital has killed 30 people, the government said on Sunday, after heavy rains overnight prompted the collapse of a massive mound of waste that engulfed nearby tents and shacks.