President Donald Trump asked senior advisers in an Oval Office meeting Thursday whether he had options to take action against Iran’s main nuclear site in the coming weeks. The meeting occurred a day after international inspectors reported a significant increase in the country’s stockpile of nuclear material, four current and former U.S. officials said Monday.

A range of senior advisers dissuaded the president from moving ahead with a military strike. The advisers — including Vice President Mike Pence; Secretary of State Mike Pompeo; Christopher C. Miller, the acting defense secretary; and Gen. Mark A. Milley, chair of the Joint Chiefs of Staff — warned that a strike against Iran’s facilities could easily escalate into a broader conflict in the last weeks of Trump’s presidency.

Any strike — whether by missile or cyber — would almost certainly be focused on Natanz, where the International Atomic Energy Agency reported Wednesday that Iran’s uranium stockpile was now 12 times larger than permitted under the nuclear accord that Trump abandoned in 2018. The agency also noted that Iran had not allowed it access to another suspected site where there was evidence of past nuclear activity.