The top US diplomat and some Iranian officials have touted progress in ongoing peace efforts, but specific terms of a potential deal remain unclear.

President Donald Trump lashed out at his most hated news network on Sunday over its coverage of his peace deal with Iran. Trump, 79, typed up a complaint about “Fake News CNN” on Truth Social Sunday night amid his administration’s ongoing negotiations with Iran to end the war he started over 13 weeks ago.

'CNN, and so many others in the Fake News Media, is a Low Ratings disaster. Even with new ownership, it is unlikely to ever get better,' Trump said

The key sticking points in the peace negotiations between the US and Iran have been Tehran's nuclear programme and control over the Strait of Hormuz.