President Donald Trump announced Monday that countries doing business with Iran will face a 25% tariff “on any and all business being done with the United States of America.”

"Effective immediately, any Country doing business with the Islamic Republic of Iran will pay a Tariff of 25% on any and all business being done with the United States of America," Trump said in a post on Truth Social.

The new tariff comes after the president said Sunday that the U.S. military is considering "strong options" on Iran and that he is being updated hourly on the protests that have engulfed the Middle Eastern country.