senior Iranian official

"Iran and the U.S. have differing views over the scope and mechanism to lift sanctions on Tehran in exchange for curbs on its nuclear programme."

"Iran's initial response to US proposal 'not positive'"

"Significant differences remain between Iran-US, including on nuclear issues."

"Significant differences remain between Iran-US, including on nuclear issues."

"no agreement has been reached on the details of the nuclear issues"

"keeping the Strait of Hormuz open is conditional on U.S. adherence to the terms of ceasefire"

"Iran will provide assurances to the international community about the peaceful nature of its nuclear programme"