Iranian president insists on country's nuclear rights, ISNA reports

US President Donald Trump has no justification to deprive Iran of its nuclear rights, the Iranian Student News Agency quoted Iranian President Masoud Pezeshkian as saying on Sunday, as Washington and Tehran continue to face disagreements over nuclear issues.

"Trump says Iran cannot make use of its nuclear rights but doesn't say for what crime. Who is he to deprive a nation of its rights?" Pezeshkian was quoted as saying.

Meanwhile, Iran's top negotiator said recent talks with the US had made progress but gaps remained over nuclear issues and the Strait of Hormuz, while President Donald Trump cited "very good conversations" with Tehran despite warning against "blackmail" over the key shipping channel.

Neither side offered any specifics about the state of negotiations on Saturday, days before a fragile ceasefire in the US-Israeli war against Iran is set to expire.

The war, now in its eighth week, has killed thousands, spread to Israeli attacks in Lebanon and sent oil prices surging because of the de facto closure of the strait, which before the war carried one-fifth of the world's oil shipments.