"That's a very serious issue if they continue to do that," Trump's national security adviser warned.
The plans are separated into two categories and involve airstrikes, targeted incursions and setting U.S. forces up for a ground invasion.
"We continue to assess that Iran is not currently undertaking the key nuclear weapons-development activities we judge necessary to produce a nuclear device," Dan Coats said.
"It definitely rattled people," a former senior U.S. administration official told The Wall Street Journal. "People were shocked. It was mind-boggling how cavalier they were about hitting Iran."
"The Americans happily say that these sanctions are unprecedented in history. Yes, they're unprecedented. And the defeat that the Americans will face will be unprecedented, God willing," Supreme Leader Ayatollah Ali Khamenei said.
In the past Gonen Segev was convicted for forgery, drug smuggling and fraud.
Iran's Foreign Minister Javad Zarif tweeted that his country gets blamed for any problem the president can think of.
"The United States is a regime formed on the basis of capitalism, racial discrimination and hegemonism," Major General Mohammad Ali Jafari said.
Tehran is trying to shore up its currency crisis.
"We are in the economic war situation," Iranian President Hassan Rouhani warned as new U.S. sanctions took effect. "We are confronting a bullying enemy."
The U.S. announced on Tuesday new sanctions against Iran Tractor Manufacturing, the largest tractor manufacturer in the Middle East, and Iran's Mobarakeh Steel Company, the largest steel producer in the region.
The World Court at the United Nations has ordered that the United States remove sanctions targeting humanitarian trade, food, medicine and civil aviation.
"Confronting multilateralism is not a sign of strength. Rather, it is a symptom of a weakness of intellect," the Iranian president told the U.N. General Assembly.
Finance ministers of Germany, France and the U.K. have been working together to move the plan forward.
The IAEA stated that its observers had access "to all the sites and locations in Iran which it needed to visit" under the agreement's framework.
Zaghari-Ratcliffe was sentenced to prison for five years in September 2016, charged with trying to overthrow the Iranian regime.
The oil company cut ties with Iran to avoid new U.S. sanctions, the Iranian oil minister said on state television Monday.
"Even in the worst case, I promise that the basic needs of Iranians will be provided. We have enough sugar, wheat and cooking oil. We have enough foreign currency to inject into the market," Rouhani said.
"He is no longer immune. His regime is no longer immune," the Israeli leader said.