Iran's Guard says ready for 'any scenario' amid US standoff Iran's powerful Revolutionary Guard says it is ready for combat and 'any scenario' as tensions with US soar

TEHRAN, Iran -- Iran's powerful Revolutionary Guard is ready for combat and "any scenario," its chief commander said Saturday, as the country's nuclear deal with world powers collapses and the U.S. alleged Iran was behind a weekend attack on major oil sites in Saudi Arabia that shook global energy markets.

Iran has denied involvement in the Sept. 14 attack that was initially claimed by Yemen's Iranian-backed Houthi rebels. Iranian Foreign Minister Mohammad Javad Zarif, who is in New York for the U.N. meetings, has warned that any retaliatory strike on Iran by the U.S. or Saudi Arabia will result in "an all-out war."

On Saturday, Gen. Hossein Salami, at a ceremony displaying pieces of an American drone Iran shot down in June, said that his forces have carried out "war exercises and are ready for any scenario."

He added: "If anyone crosses our borders, we will hit them."

Zarif claimed in a tweet that Saudi Arabia does not believe its own allegations that Iran was responsible for the attack on Saudi oil sites.

"It is clear that even the Saudis themselves don't believe the fiction of Iranian involvement", Zarif said, pointing to what he described as a Saudi retaliatory attack on Houthi forces in southwestern Yemen.

Saudi Arabia has been at war with the Houthi rebels since March 2015. The U.N., Gulf Arab nations and the U.S. accuse Iran of supplying arms to the Houthis, something Tehran denies.

The Houthis announced Friday they are halting all drone and ballistic missile attacks on Saudi Arabia — a move welcomed Saturday by Special Envoy for Yemen Martin Griffiths.

If implemented in good faith, he said, a halt to hostile military acts against the Saudis "could send a powerful message of the will to end the war."

Griffiths said in a statement that he also welcomed the Houthis' "expression of further openness" to implementing a prisoner exchange agreement, "and the desire for a political solution to end the conflict."

He stressed "the importance of taking advantage of this opportunity and moving forward with all necessary steps to reduce violence, military escalation and unhelpful rhetoric."

Analysts say the missiles used in the Sept. 14 assault wouldn't have enough range to reach the oil sites in eastern Saudi Arabia from impoverished Yemen. The missiles and drones used resembled Iranian-made weapons, although analysts say more study is needed to definitively link them to Iran.

Salami added that Iran does not want to start a conflict, but appeared to warn the U.S. and Saudi Arabia that Iran is prepared.

"We won't stop until the destruction of any aggressor. And we will not leave any secure spot," he said. "Do not miscalculate and do not make a mistake."

In Riyadh, Saudi Arabia's minister of state for foreign affairs criticized Iran.

"The more engagement you have with Iran the more Iran believes its aggressive behavior is acceptable in the world, and that is not acceptable, so those issues need to be considered," Adel al-Jubeir told a news conference. He said the kingdom was waiting for the investigation's conclusion on where the strikes came from "so we can respond."

Meanwhile, tiny, oil-rich Kuwait continued to sound the alarm over the potential for tensions to spiral out of control. Its state-run KUNA news agency on Saturday quoted the CEO of Kuwait Flour mills and Bakeries Co. as saying that it has foodstuffs available for upward of eight months if necessary. Mutleg al-Zayed said the company had a readiness to cope "with ramifications that may emerge as a result of conditions in the region," without elaborating.

Already, Kuwait has raised the readiness of its armed forces and increased security at its ports.

President Donald Trump signaled on Friday that he was not inclined to authorize an immediate military strike on Iran in response to the attacks on the Saudi oil industry, saying he believes showing restraint "shows far more strength" and he wants to avoid an all-out war.

The Pentagon said the U.S. will deploy additional troops and military equipment to Saudi Arabia and the United Arab Emirates to beef up security.

Trump, who withdrew the U.S. from the nuclear deal more than a year ago, said separately Friday that America "just sanctioned the Iranian national bank." He did not elaborate.

The U.S. Treasury Department said it took action against the Central Bank of Iran.

Iran's central bank chief, Abdolnasser Hemmati, sought to shrug off the new sanctions on Saturday. According to the state-run IRNA news agency, Hemmati said re-imposing sanctions on Iran's central bank shows the U.S. has little leverage left.

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Associated Press writers Fay Abuelgasim in Riyadh, Saudi Arabia, Jon Gambrell in Dubai, United Arab Emirates and Edith M. Lederer at the United Nations, contributed to this report.