Washington, June 1 -- US President Donald Trump has requested further amendments to a proposed agreement with Iran aimed at prolonging a ceasefire, CBS News reported.

According to reports, the newest draft incorporates a 60-day cessation of hostilities, measures to unlock the Strait of Hormuz, and a framework to resume negotiations on Iran's nuclear programme. However, an official agreement has not yet been declared.

A high-level White House session held on Friday to reach a "final determination" concluded without any definitive resolution.

Trump signalled that blocking Iran from engineering nuclear armaments continues to be a core element of the potential pact.

"The one guarantee that I have to have is that there will be no nuclear w...