Trump Warns Iran It Needs to Move Fast on Deal or Attacks Will Ensue

'There won't be anything left,' the president warned in a social media post on Sunday.
Published: 5/17/2026, 4:13:29 PM EDT
Trump Warns Iran It Needs to Move Fast on Deal or Attacks Will Ensue
U.S. President Donald Trump waves after delivering remarks at a dinner for National Police Week in the Rose Garden at the White House on May 11, 2026. (Kevin Dietsch/Getty Images)

U.S. President Donald Trump on Sunday delivered a new warning to Iran’s leadership and said that Tehran must move quickly or “there won’t be anything left,” providing an update on what the administration wants from the regime as a tentative ceasefire continues to hold up.

“For Iran, the Clock is Ticking, and they better get moving, FAST … TIME IS OF THE ESSENCE!” Trump wrote in a post on Truth Social.

Last week, Tehran submitted a peace proposal to the United States that Trump said he rejected due to a lack of guarantees on the country’s nuclear program—a key component of the negotiations. On May 11, he told reporters that the ceasefire between the two nations was on “massive life support” as the U.S. military continues its naval blockade on Iranian ports.

Trump’s remarks on Sunday were made as officials in the United Arab Emirates said that a drone was launched at its nuclear power plant and struck a generator, causing a fire. No injuries were reported, and the attack did not trigger an elevation in radiation levels, the country said.

The United Nations’ International ⁠Atomic Energy Agency said emergency diesel generators were providing power to the UAE plant’s “unit 3,” and called for “maximum military restraint” near any nuclear power plant, adding that it was following ​the situation closely.

During the war that began with U.S. and Israeli strikes on the Iranian regime on Feb. 28, killing a large portion of its leadership, Tehran repeatedly targeted the UAE and other Gulf states that ​host U.S. military bases, hitting sites that include civilian and energy infrastructure.

Iranian regime officials on Sunday signaled that they are prepared for the conflict to resume.

An Iranian military official, Abolfazl Shekarchi, released a statement on Sunday that future U.S. strikes on Iran would be met with “crushing and severe blows for that country” and said it would trigger a “self-created quagmire” for the Trump administration, according to the semi-official IRNA news agency.

Washington has called for Tehran to dismantle ​its nuclear program and stop trying to control the strait. Iran has demanded compensation for war damage, an end to a U.S. blockade of Iranian ports, and a halt to fighting ‌on all ⁠fronts, including in Lebanon, where Israel is battling the Iran-backed Hezbollah terrorist group.

Trump held talks with Chinese leader Xi Jinping this week on whether the Chinese regime would ​help resolve the conflict and has previously threatened ​to resume attacks if Iran does ⁠not agree to a deal. China has long been a major purchaser of Iranian oil.

Before the ceasefire was announced last month, Trump warned that he would strike Iranian bridges and power plants if the country didn’t come to an agreement with the United States. Trump has wanted Tehran to stop attacks on shipping in the Strait of Hormuz and a guarantee it will end its nuclear program.
Two men sit in a small boat on the water as cargo ships are anchored in the background in the Strait of Hormuz off Bandar Abbas, Iran, on May 4, 2026. (Amirhosein Khorgooi/ISNA via AP)
The disruption ⁠to shipping through the Strait of Hormuz has caused one of the biggest oil supply crises in history, pushing up prices. The U.S. military has imposed a blockade on Iranian ports, and said that as of Sunday it had redirected 81 commercial vessels and disabled four vessels to ensure compliance.

Israel and Lebanon last week agreed to a 45-day ​extension of a ceasefire there, though the truce has failed to end clashes.

Reuters contributed to this report.