However, the administration has not gone into great detail about the threat, leading even President Donald Trump's closest allies in Congress to press for more information.
The officials, who spoke on condition of anonymity, said that the threat came from Iraqi militias commanded and controlled by Tehran's Islamic Revolutionary Guard Corps.
Following the United States announcement on Wednesday, the commander of Iran's elite Revolutionary Guards said, "We are on the cusp of a full-scale confrontation with the enemy", the Fars news agency reported.
USA officials told ABC News last week that there were "clear indications" Iran or its proxy forces were preparing for a possible attack against US forces at sea and on land, including in Iraq and Syria, prompting the deployment of a carrier strike group and bomber task force to the region.
Despite global skepticism, the United States government has been pointing to increasing threats from Iran, a long-time enemy and rival of United States allies Israel and Saudi Arabia.
Romney said it's "inconceivable" that Trump would start a conflict with Iran.
Earlier on Wednesday, the ISNA news agency reported that an Iranian atomic energy official said Iran has officially stopped some commitments under the pact, and has no limit from now for production of enriched uranium and heavy water.
Dauntless gets full release next week Finally, players who begin their Dauntless journey next week will have the option of picking up a new Arcslayer Pack. Everything from questing and crafting to meeting other Slayers and pursuing Behemoths has received massive updates.
In a written statement, the governments jointly say the incident "posed a threat to the safety and security" of global shipping and maritime navigation. "Khamenei said that a war is also not in the US" interest.
The United Arab Emirates will show restraint after attacks on oil tankers off its coast and is committed to de-escalation during a "difficult situation" caused by Iranian behaviour in the region, a senior official said on Wednesday.
"We fundamentally do not seek war with Iran", Pompeo said during a visit to Sochi, Russia, this week.
On Wednesday, the USA ordered all nonessential personnel to leave Iraq, and last week an aircraft carrier group and other resources were shifted to the Persian Gulf region.
Though Germany and the Netherlands said that they had suspended participation in a training mission for Iraqi troops, they cited general tension between the U.S. and Iran.
"As we pointed out previously, Mr. Trump is in danger of being cornered into choosing between a counterproductive use of force and allowing Iran to cross red lines".
The MT Andrea Victory, one of the alleged targets, sustained a hole in its hull just above its waterline from "an unknown object", its owner Thome Ship Management said in a statement. In the former conflict, Britain ultimately sent 45,000 troops to aid the United States in the invasion of Iraq, and Australia and Poland sent smaller numbers, while other countries provided political support.
Senator Bob Menendez, the senior Democrat on the Senate foreign relations panel, demanded a briefing "immediately" on the threat intelligence, any plans for war and the decision to order embassy staff out of Iraq.
Security Council resolution that calls for a Syrian-led political transition with a cease-fire, new constitution and elections. As for reports that more USA troops could be moved to the Middle East, Pompeo said he would defer to the Defense Department.
According to Murray, he told Vanity Fair, "I don't remember what I said", adding, "I was trying to keep her at ease. Gomez is one of social media's biggest stars with an Instagram audience of around 150 million people.
New Zealand is not at risk of any tsunami following a power natural disaster which hit Papua New Guinea earlier this morning. The quake took place 44 kilometers northeast of Kokopo in PNG, the USGS said.
It also accuses China of stealing intellectual property from USA firms. "I am not a tariff man". " We can and we must", Li said. Among the retaliatory measures is an increase in the tariff on US liquefied natural gas (LNG) from 10% to 25%.
Netflix has announced that the latest season of the highly acclaimed sci-fi anthology series will be released on June 5. Netflix's official tag-line for the new season reads: " Three new stories about the future we should have seen coming".
For many people, the start of a day is usually kicked off with a cup of coffee , providing much needed fuel for the day. And they identified which coffee consumption habits increased or lowered the risk of cardiovascular disease.
Investigators from the National Transportation Safety Board in Washington DC are expected to arrive in Ketchikan later on Tuesday. The ship left Canada 's Vancouver city on May 11 and was scheduled to arrive in the city of Anchorage in Alaska on Saturday.
In the north-western town of Kiniyama, windows and doors to a mosque were smashed and copies of the Koran thrown on the floor. Mr Wickremesinghe said he had given powers to the security forces to take strong action against those disturbing the peace.
The leaks resulted in Theresa May firing her defense minister Gavin Williamson, despite Williamson denying leaking anything. Furthermore, concerns about Chinese law requiring Huawei to cooperate with China's intelligence agencies were simply hype.
USA recorded 75 new measles cases last week
These areas are home to the Orthodox Jewish communities that have been reporting an increasing number of cases since October. That does not include the cases in New York City which totaled 466 as of Tuesday; 410 of those have been reported this year.
NASA findings reveal Moon is shrinking
NASA administrator Jim Bridenstine welcomed the news, describing it as an investment in the space agency's future. As the Moon goes around the Earth, at its apogee, it feels the maximum stresses created by the planet's gravity.
Samsung brings Apple TV app to compatible Smart TVs
In the U.S. , its roster of paid channels includes HBO , Starz, Showtime, Smithsonian Channel, Epix, Tastemade, and MTV Hits. Apple practically takes over the hosting of the contents, billing for the streaming and allows viewing from the app itself.
Madonna rejects calls for Tel Aviv Eurovision boycott
Finish DJ Darude said artists behind the scenes of the festival were "slapping high-fives and having a good time". Oddie said that the band's boycott of Eurovision was in response to "a call from Palestinian civil society".