Ayatollah rejects US nuclear demands
Ayatollah Ali Khamenei, Iran's supreme leader, has hardened his stance on global nuclear negotiations, with the deadline for a comprehensive agreement only days away.
He insisted Iran would only dismantle its nuclear infrastructure if economic sanctions were lifted first.
He also ruled out a freeze on research and development for 10 years, as well as inspections of military sites.
The demands appear to undercut a framework deal announced in April.
They could also limit the ability of Iran's negotiating team to make key concessions as the self-imposed June 30 deadline approaches.
As supreme leader, Ayatollah Khamenei has the final say on all state matters.
The so-called P5+1 - the US, UK, France, China and Russia plus Germany - want Iran to scale back its sensitive nuclear activities permanently to ensure that it cannot build a nuclear weapon.
Iran insists its nuclear work is peaceful.