Trump made the announcement on the social media platform Truth Social.

He wrote: "CONGRATULATIONS TO EVERYONE! It has been fully agreed by and between Israel and Iran that there will be a Complete and Total CEASEFIRE (in approximately 6 hours from now, when Israel and Iran have wound down and completed their in progress, final missions!), for 12 hours, at which point the War will be considered, ENDED! Officially, Iran will start the CEASEFIRE and, upon the 12th Hour, Israel will start the CEASEFIRE and, upon the 24th Hour, an Official END to THE 12 DAY WAR will be saluted by the World."

"During each CEASEFIRE, the other side will remain PEACEFUL and RESPECTFUL," he said.

Trump said the war could have continued for years and destroyed the Middle East.

"God bless Israel, God bless Iran, God bless the Middle East, God bless the United States of America, and GOD BLESS THE WORLD!" he said.

In another post, Trump claimed that both nations approached him to reach a ceasefire deal.

He wrote: "Israel & Iran came to me, almost simultaneously, and said, “PEACE!” I knew the time was NOW. The World, and the Middle East, are the real WINNERS! Both Nations will see tremendous LOVE, PEACE, AND PROSPERITY in their futures."

He further said, " They have so much to gain, and yet, so much to lose if they stray from the road of RIGHTEOUSNESS & TRUTH. The future for Israel & Iran is UNLIMITED, & filled with great PROMISE. GOD BLESS YOU BOTH!"

However, Iran has denied reaching the ceasefire deal.

Iran’s Foreign Minister Abbas Araghchi wrote on X: "As Iran has repeatedly made clear: Israel launched war on Iran, not the other way around."

"As of now, there is NO 'agreement' on any ceasefire or cessation of military operations. However, provided that the Israeli regime stops its illegal aggression against the Iranian people no later than 4 am Tehran time, we have no intention to continue our response afterwards," he said.

He said the final decision on the cessation of our military operations will be made later.

In another post on X, he gave a hint that a truce was reached when he said: " The military operations of our powerful Armed Forces to punish Israel for its aggression continued until the very last minute, at 4am."

He said: "Together with all Iranians, I thank our brave Armed Forces who remain ready to defend our dear country until their last drop of blood, and who responded to any attack by the enemy until the very last minute."

Developments in Qatar

Retaliating against the US attack on three of its key nuclear sites, Iran attacked a US-run airbase in Qatar and Iraq after Washington DC joined the Israel camp during its conflict with Tehran, Iranian state TV reported.

The mission, called the "Annunciation of Victory," is focused on Al Udeid Air Base, according to the Islamic Revolutionary Guard Corps.

"With the aggression of the American enemy, it became clear to everyone that the evil of the Zionists was an extension of the American design," the Iranian armed forces said in a statement.

"Accordingly, we remind you that in this national defense, the US mobile military bases and targets in the region are not a point of strength, but rather a major weakness and a blind spot for this war-mongering regime."

"Iran will not leave any attack on its territorial integrity, sovereignty, and national security unanswered under any circumstances," the IRGC statement said.

No casualties were reported in the airbase, US officials told reporters.

The attack on the Al-Udeid Air Base was "strongly condemned" by the Qatari government.

Saturday's Action

The attack comes after the US early on Saturday bombed Iran's three nuclear sites. The sites are Fordow, Natanz, and Esfahan.

B-2 bombers took off from Whiteman Air Force Base in Missouri in the early morning hours of Saturday (US time) to carry out the strikes.

The attack was carried out as the US joined the conflict that started a week ago when Israel launched airstrikes against Iranian nuclear and military sites, primarily targeting uranium enrichment facilities to prevent Iran from developing nuclear weapons.