Hello and welcome to NewsHour from the BBC World Service.
I'm Celia Hatton and I'm coming to you live from London.
We're starting this edition of NewsHour looking at the prospects for negotiations between the US and Iran.
Just a few days ago, it seemed the two sides were ready to return to the bargaining table,
perhaps starting this week for their first direct talk
since US stealth bombers attacked Iranian nuclear sites.
But then, just a few hours ago,
Donald Trump said he was not speaking to Iran and he was not offering Tehran anything.
He repeated again that the US had totally obliterated Iran's nuclear facilities.
That claim has been disputed by intelligence reports from Israel and the United States.
But now we want to bring you the latest stance from inside Iran.
The country's deputy foreign minister has told the BBC his country won't enter into talks on its nuclear program unless the US first guarantees not to bomb the country again during the negotiations.
Our chief international correspondent, Lise Doucet,
has gained access to report from inside Iran,
on condition that none of her reports is used on the BBC's Persian service,
which broadcasts in Iran.
This law from Iranian authorities applies to all international media agencies operating in Iran.
Majid Taq Ravanchi is Iran's deputy foreign minister for political affairs.
He told Leeds that Iran has not received the kind of reassurance needed to move forward with the talks.
We are hearing from Washington telling us that they want to talk.