White House spokesman Gordon Johndroe said: ” Iran’s agreement with the UN nuclear watchdog on its controversial atomic programme on Sunday does not go far enough, insisting the Islamic republic must suspend uranium enrichment.”

Johndroe added: “Answering questions about their past nuclear activities is a step, but they still need to suspend their enrichment and reprocessing activity”.

“Another declaration is no substitute for complying with the UN sanctions,” said Gordon Johndroe.