Iran has given no indication of whether it will accept the US plan to end the war and reopen the Strait of Hormuz a day after renewed clashes threatened the fragile truce.

Washington has reportedly presented a one-page memorandum of understanding that would gradually reopen the Strait of Hormuz and lift the American blockade on Iranian ports.

There are signs of fresh momentum to end the war, but Trump himself has injected a note of caution.