According to the official, Tehran has conveyed its message directly to several regional governments hosting U.S. forces, stressing that any American military action against Iran would trigger retaliation beyond Iranian borders. The warning underscores the risk of a wider regional escalation should tensions between Washington and Tehran continue to intensify.

Trump has issued repeated warnings to Iran over its crackdown on protesters, saying the United States could take action if the violence continues. Iranian leaders have rejected the criticism, accusing Washington of interference and destabilisation, while insisting that domestic unrest is an internal matter.

The Middle East hosts numerous U.S. military installations across countries including Iraq, Syria, the Gulf states and Jordan, making them potential flashpoints in the event of a direct confrontation. Analysts say Iran’s warning is aimed at deterring U.S. action by raising the cost for Washington and its regional partners.

Iran has previously said it would respond forcefully to any attack, relying on a combination of missile capabilities and allied militias across the region. Western officials have expressed concern that miscalculation or escalation could rapidly draw multiple countries into a broader conflict.

Diplomatic efforts to contain tensions are ongoing, but the sharp rhetoric on both sides has heightened fears of instability across the Middle East.