The U.S. is nearing a deal with Iran to end the war, President Donald Trump announced on Saturday, though the precise parameters of the agreement remained unclear.

After holding a call with officials from the United Arab Emirates, Saudi Arabia, Qatar, Turkey, Pakistan, Jordan, Bahrain and Egypt, as well as a separate discussion with Israeli Prime Minister Benjamin Netanyahu, Trump said on Truth Social on Saturday afternoon that an agreement has “been largely negotiated” with “final aspects and details … currently being discussed.” 

“In addition to many other elements of the Agreement, the Strait of Hormuz will be opened,” the president said.

While Trump did not offer any further details, Iranian officials had told The New York Times that a memorandum of understanding under discussion with the U.S. would end fighting on all fronts, including between Israel and Lebanon; lift the U.S. blockade of Iranian ports and allow for free movement of commercial traffic without any tolls; leave nuclear issues to be negotiated within 30 to 60 days; and see the release of $25 billion in frozen Iranian funds. 

U.S. officials told the Times that, under the current agreement, Tehran has committed to giving up its stockpile of already enriched uranium, an issue that Trump has frequently stated is a U.S. priority, but the specifics as to how that transfer will occur are set to be worked out in subsequent negotiations.

A senior Iranian official denied to Reuters on Sunday that Iran’s nuclear program was a part of the initial agreement, and said that Tehran had not agreed to hand over its enriched uranium. “The ​nuclear issue will ​be addressed in negotiations for ‌a ⁠final agreement and are therefore not part of the ​current deal,” the official told Reuters.

A U.S. official told Axios’ Barak Ravid that the agreement involves a 60-day ceasefire extension during which the Strait of Hormuz would be reopened and Iran would be able to sell oil freely. The draft MOU, according to Axios, includes commitments from Iran that it will never pursue nuclear weapons and to negotiate a suspension of its uranium enrichment program and the removal of its stockpile of highly enriched uranium. The draft also includes an end to the war between Israel and Hezbollah in Lebanon.

Netanyahu said in a statement on Sunday regarding his conversation with Trump the day prior that the two leaders “agreed that any final agreement with Iran must eliminate the nuclear danger,” including dismantling Tehran’s nuclear program and removing enriched uranium from the country. Trump also “reaffirmed Israel’s right to defend itself against threats on every front, including Lebanon,” Netanyahu said.

Some hawkish Senate Republicans expressed outrage on Saturday over the reported terms of the deal, calling it a defeat for the United States filled with major concessions to the Iranian regime.