Iran will resume nuclear enrichment if its talks with leading EU nations fail, says the country's foreign minister.
Tehran says its right to nuclear power is non-negotiable
Kamal Kharrazi said Tehran would have no other choice if no agreement was reached at Friday's negotiations with France, Germany and the UK.
The group - known as the EU Three - want Iran to abandon its uranium enrichment and reprocessing activities.
They are offering Tehran economic, political and technological incentives for giving up the programme.
A previous round of talks in March ended with no agreement.
Mr Kharrazi was speaking in The Hague after talks with his Dutch counterpart, Bernard Bot.
"Iranian people fear a delay,"
Mr Kharrazi told reporters after the talks.
"They believe it is their inalienable right to have access to this technology for peaceful purposes."
The Europeans have warned they would back US moves to take Tehran to the UN Security Council if Iran breaches agreements or resumes uranium enrichment during the talks.
Iran maintains its nuclear programme is entirely peaceful, but Washington suspects it of secretly trying to build a nuclear weapon.