Iran’s top security official warned on Saturday that any country joining the United States in imposing economic sanctions against Tehran would be considered an enemy and could face severe retaliation.

The United States is planning new sanctions after President Donald Trump said the measures would be the most severe economic operation yet and warned of significant economic consequences for any nation that provides Iran with a lifeline. Treasury Secretary Scott Bessent said he would detail the sanctions on Monday.

Mohsen Rezaei, secretary of Iran’s Supreme National Security Council, said Iran would first seek negotiations, then ask other countries to distance themselves from the United States, and if those steps are not taken, it would target their interests.

Egypt’s foreign minister and Iran’s foreign minister spoke by phone, urging a return to diplomatic talks, including the Oman‑Iran negotiations and the US‑Iran memorandum, to achieve a comprehensive and sustainable agreement that would improve regional security.

Iran closed the Strait of Hormuz after joint US‑Israel strikes on February 28, causing shipping disruptions; it later allowed some Iraqi oil tankers to pass but said the strait would remain closed until a US naval blockade is lifted, and no agreement has been reached on shipping arrangements.