**Saudi Arabia’s foreign minister has cast doubt on the usefulness of imposing more sanctions on Iran over its nuclear programme.**Prince Saud al-Faisal said the threat posed by Iran demanded a “more immediate solution” than sanctions.
He was speaking in Riyadh alongside US Secretary of State Hillary Clinton, who earlier said Iran was “becoming a military dictatorship”.
Turkey’s foreign minister is due in Iran to try and mediate in the crisis.
Turkey is a Nato member, and Ahmet Davutoglu is expected to try and promote a deal on Tehran’s nuclear programme between Turkey’s western allies and Iran’s Islamic government.
More sanctions
Speaking at a joint Riyadh news conference with Mrs Clinton, Prince Saud said: "Sanctions are a long-term solution.
“We don’t want to be engaging while they are building their bomb”
Hillary Clinton
US Secretary of State
More sanctions on way for Iran
Q&A: Iran and the nuclear issue
“They may work, we can’t judge. But we see the issue in the shorter term maybe because we are closer to the threat… So we need an immediate resolution rather than a gradual resolution.”
He added that efforts to rid the Middle East of nuclear weapons must also apply to Israel.
Mrs Clinton is on a tour of the Gulf to try to build support for more sanctions on Iran.
Speaking to students at a Qatar university earlier, she said Iran’s elite army corps, the Revolutionary Guard, had gained so much power they had effectively supplanted the government.
“We see that the government of Iran, the supreme leader, the president, the parliament, is being supplanted and that Iran is moving toward a military dictatorship. That is our view,” Mrs Clinton said on her maiden visit to the kingdom.
On Sunday, she urged Iran to reconsider its “dangerous policy decisions”.
Mrs Clinton told a conference in Qatar it was leaving the international community little choice but to impose further sanctions.
The US and its allies fear Iran is attempting to develop a nuclear weapon. Iran insists its nuclear programme is entirely peaceful.
Earlier, aides revealed Mrs Clinton would press Saudi Arabia to help persuade China to support a tougher stand against Iran’s nuclear ambitions.
China, which wields a veto on the Security Council as a permanent member, is against imposing more sanctions.
The BBC’s Kim Ghattas, who is travelling with Mrs Clinton, says Beijing fears a major loss of revenue from investments in Iran, and disruption of oil supplies from a country providing it with 400,000 barrels a day.
Turkish mediation
Turkey has already offered to store Iran’s nuclear material as part of a swap arrangement agreed last year.
Under terms of that deal, Iran would get medical isotopes from France in return for handing over its own enriched uranium.
Turkey’s government hopes its offer to act as a nuclear repository will appeal more to Iran than storing its uranium elsewhere, says the BBC’s Jonathan Head in Istanbul.
But Iran is still insisting that any nuclear swap must take place on its own soil.
If no deal can be done with Iran, Turkey will soon be forced to choose its historically strong alliance with the US and Europe, and its desire for closer friendship with its eastern neighbour, our correspondent adds.
Iran, meanwhile, rejected criticism from the West about its human rights record.
“Iran is becoming one of the predominant democratic states in the region,” said Javad Larijani, secretary general of the Iranian High Council for Human Rights.