It remains unclear whether the continued Israeli strikes on Iran's capital are a continuation in the 12-day conflict, or the final explosive blasts of a deadly war.
The deal, which Iran's state media is not yet confirming to have been signed, is set to take effect in the next few hours, according to Trump's claims.
The US President said: "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.
"On the assumption that everything works as it should, which it will, I would like to congratulate both Countries, Israel and Iran, on having the Stamina, Courage, and Intelligence to end, what should be called, 'THE 12 DAY WAR.'"
