In a Truth Social post, Trump said that Iran must not take such a step, otherwise it will result in a strong attack with a "force which they have never seen before."
Amid the ongoing conflict in the Middle East, Iran's Ambassador to the United Nations, Amir Saeid Iravani, said that all bases and assets of hostile forces in the region are considered legitimate military targets under Iran's right to self-defence.
US President Donald Trump is closely overseeing ongoing American military actions in Iran, which were initiated on Saturday under "Operation Epic Fury."
Deputy Representative of the Supreme Leader of Iran, Ayatollah Ali Khamenei in India, Mohammad Hossein Zyiaee, on Saturday condemned the United States, stating that attacking Iran after saying that negotiations were underway shows that the US and Israel are not committed to their words.
Iran's Foreign Minister Seyed Abbas Araghchi said that Iran will not remain silent after the United States attacks its people, amid rising tensions following US and Israeli military actions.
Iran's Ambassador to India, Mohammad Fathali, on Saturday warned the US and Israel, stating that Tehran is "fully prepared" and will take all "necessary options" to protect itself.
One rallying point for the Iranian people over the last few months of intensified protests has been the former crown prince Reza Pahlavi, who dubbed the strike a humanitarian intervention.
Iranian officials on Saturday vowed a "crushing response" against their targets in response to a major joint military strike by Israel and the United States, according to Tasnim News Agency.
Iran's Foreign Minister Abbas Araghchi said "good progress" was made after long and intensive talks in the third round of negotiations with the US in Geneva on issues of Tehran's nuclear programme and sanctions relief discussed amid escalated tensions between the two sides.