Mr Trump said on Twitter that the United States was waiting to hear from the Saudis as to who they believe was behind the attack and "under what terms we would proceed!"
Shortly following the Saturday attacks, Iran-backed Houthi rebels in Yemenclaimed responsibility, saying they carried out the strike with 10 unmanned drones. "There is no evidence the attacks came from Yemen", Pompeo wrote on Twitter.
"These attacks are not only aimed at the vital installations of the kingdom, but also on the global oil supply and its security, and thus pose a threat to the global economy".
China on Monday threw its weight behind Iran after the United States blamed the country for the weekend drone attacks on major oil facilities in Saudi Arabia, saying that it is not fair to blame Tehran for the bombings without any conclusive probe.
Already, there have been mysterious attacks on oil tankers that America blames on Tehran, at least one suspected Israeli strike on Shiite forces in Iraq, and Iran has shot down a US military surveillance drone.
The incident ratcheted up the war of words between Washington and Tehran at a time when Donald Trump was seemingly softening his stance towards Iran.
What is the U.S. saying?
Vice President Mike Pence arrives to the West Wing of the White House, Sunday.
All up, the dual attack saw the operations of Saudi Arabia's world-class Abqaiq processing facility and the Khurais oil fields disrupted.
As well as supply fears, increasing tensions between the USA and Iran are also contributing to rising prices amid fears of potential conflict between the two countries in the region.
"Because of the tension and sensitive situation, our region is like a powder keg", said Mr Hajizadeh. "When these contacts come too close, when forces come into contact with one another, it is possible a conflict happens because of a misunderstanding".
A senior Revolutionary Guards commander warned that the Islamic Republic was ready for "full-fledged" war.
Yemen's Iran-backed Houthi rebel group had claimed responsibility for the attack, which hit the world's biggest oil-processing facility but a senior US official told reporters on Sunday that evidence indicated Tehran was behind it.
Trump has said his goal is to force Iran to negotiate a tougher agreement and has left open the possibility of talks with President Hassan Rouhani at an upcoming United Nations meeting.
"We think the attacks would be a wake up call for investors, who have failed to price in risk within the price of crude". Iraq denied this on Sunday and vowed to punish anyone using Iraq as a launchpad for attacks.
The Abqaiq processing plant was hit at the weekend.
It's also set to escalate a showdown pitting Saudi Arabia and the USA against Iran, which backs proxy groups in Yemen, Syria and Lebanon.
"Such fruitless and blind accusations and remarks are incomprehensible and meaningless", foreign ministry spokesperson Abbas Mousavi said.
Higher oil prices will increases costs throughout the production chain for East Asian countries that are both export-oriented and dependent on oil imports, said Francis Lun, a Hong Kong-based analyst.
The Iran-aligned Houthi rebel movement has been fighting the Yemeni government and a Saudi-led coalition.
The UAE, anxious about rising Iran tensions and Western criticism of the war, has reduced its presence in Yemen, leaving Riyadh to try to neutralise the Houthi threat along its border.
As a result, they did away with the unlimited plan and changed prices - something that didn't go over so well. Unfortunately, MoviePass never recovered after dropping that model business and is now looking for a buyer.
Chevrolet Suburban - There are 202,634 of this vehicle with model years ranging from 2015 to 2018 included in the recall. GM says affected trucks and SUVs built before 2014 and after 2018 are not equipped with the affected vacuum pump.
China aims to catch up with Russian Federation and the United States to become a major space power by 2030. The area where the probe has landed faces away from earth, meaning it is free from radio frequencies.
Dave McGregor, president and COO of the Grand Bahama Power Company, said crews would resume restoring power as soon as possible. Tropical Storm Humberto strengthened from a tropical cyclone after forming just east of the Caribbean nation on Friday.
Richarlison came closest for Everton early on, when the Brazilian forward thumped an effort from distance off the crossbar. He rarely took a proper goal kick but this was him simply following Emery's persistence to play out from the back.
Scopolamine, also known as hyoscine, is banned in horse racing because it can improve horses' breathing and heart-rate. The CHRB later changed the penalty for a scopolamine violation to the lesser penalty of a fine and possible suspension.
He is the youngest non-American victor on the Tour since 1923 and the first third round leader to hold on and claim this event. I wanted to come back the next year, and the insane life it is, the next year was getting my card here in this event.
On September 5, at least 12 people were killed-including one American soldier-and 42 wounded, in a vehicle bomb attack in Kabul. But fears are now growing of increased violence with presidential elections set for 28 September in Afghanistan.
Ric Ocasek , frontman and lead singer of New Wave innovators The Cars , was found dead on Sunday, US police said. They said there were no signs of foul play and that the medical examiner was to determine a cause of death.
A USA official said all options, including a military response, were on the table but added that no decisions had been made. The strikes on the Saudi Aramco processing facilities in Abqaiq and Khurais were claimed by Yemen's Houthi-backed rebels.
Separately, Iraqi Prime Minister Adil Abdul-Mahdi's office issued a statement on Sunday denying the drone attack came from there. The loss of more than 5% of the world's oil supply - no matter for how many days - is not an internal Saudi matter, she said.
Some of Mugabe's relatives are still bitter over how he was removed from power, and the role Mnangagwa played in his ouster. The late former President Cde Robert Mugabe will be buried at the national heroes acre on a date to be announced.
Riots in Pakistan Over 'Blasphemy' by Hindu School Principal
Pakistani media reports quoted senior police officials of the region as saying that the situation had been brought under control. The police have registered three FIRs against the rioters for desecrating a temple, damaging the school and blocking roads.
Ric Ocasek, frontman of the Cars, dies aged 75
Peter Frampton tweeted that his thoughts were with Ocasek's family and applauded his career as a writer and singer. Part of that burgeoning music scene, the band formed in 1976 in Boston, Massachusetts. "It is a lifetime".
Boris Johnson Will Meet Jean-Claude Juncker Today
Johnson has shrugged off the political discord and on Sunday he compared himself to the Incredible Hulk. Cameron also said he wouldn't rule out a second referendum to try to resolve the Brexit impasse.
GOP lawmaker criticized over gun tweet about O'Rourke
Within hours, Twitter removed the tweet for violating its terms of service, but not before O'Rourke took a screenshot. Secret Service said Friday that O'Rourke is not now under the agency's protection and declined to comment further.
First high-resolution images of Ultima Thule released
More information continues to be downloaded, including topography, atmosphere, and composition of Ultima Thule . It's located in the Kuiper Belt, an icy region of our solar system beyond the orbit of the major planets.
McIlroy named PGA Tour player of the year
The caveat here for McIlroy, of course, is that it can be the unofficial whatever, but it's technically not a major. He won three tournaments overall and finished first in the world golf rankings and on the money list.
Samsung starts sales of Galaxy A30s in Ukraine
The Galaxy A50s has an already popular Infinity-U display alongside the futuristic in-display fingerprint sensor. Nevertheless, it is also essential to note that the A30s will not feature a robust camera like the A50s.
Bronx doctor: Vaping and cigarettes are equally unsafe
In an accompanying FDA statement, it is suggested details of this potential ban will be revealed in the coming weeks. Meanwhile, the FDA is finalizing instructions to remove all non-tobacco flavors of e-cigarettes within 30 days.
Supreme Court allows broad enforcement of asylum limits
Morgan said the Trump administration is "doing everything that they can" to address what he described as the crisis on the border. On the nine-judge Supreme Court liberal-leaning Justices Ruth Bader Ginsburg and Sonia Sotomayor dissented from the ruling.