LONDON: The son of the ousted shah of Iran spoke out Tuesday against any deal with Iran that leaves the Islamic government in place, as Washington prepared to sign an agreement with Tehran.

Speaking after meeting MPs during a visit to London, 65-year-old Reza Pahlavi said the international community should back opposition protesters rather than making peace with Iran.

“Dealing with this regime will fail and we will all face the consequences,” he declared in a social media post.

“The regime’s 47-year war against the Iranian people continues. Just as it has never made peace with its own citizens, it will never truly make peace with the world,” he said.

Pahlavi’s father, Mohammed Reza Pahlavi, was the last shah of Iran, who fled into exile in 1979 ahead of an Islamic revolution that overthrew he monarchy and died in exile soon afterwards.