President Donald Trump asked senior advisers last Thursday about potential options for attacking Iran’s main nuclear site.
The advisers warned him that military action could spark a broader conflict, officials were cited as saying.
The White House has not commented on the accounts of the meeting.
It took place a day after the global nuclear watchdog said Iran’s enriched uranium stockpile was 12 times what was permitted under a 2015 nuclear deal.
The landmark accord saw the US and five other world powers give Iran relief from crippling economic sanctions in return for limits on sensitive activities to show it was not developing nuclear weapons.