US President Trump has voiced optimism that diplomatic efforts on Iran’s nuclear activities would bear fruit, reiterating that he wants to "make a deal with Iran."

The Iranian foreign minister rejects reports about an alleged secret nuclear site, saying they are supplied by the terrorist cult MKO on Israeli prime minister Benjamin Netanyahu's order in a bid to sabotage Tehran-Washington indirect talks.

Iran’s Foreign Ministry has dismissed as “fabricated and baseless” recent media reports that it has proposed direct talks with Washington and that a meeting between the presidents of the two countries is to happen soon.

US President Donald Trump threatens to slap secondary sanctions and cut off business with the countries that purchase Iranian oil or petrochemicals.

China's FM commends Iran's diplomatic approach to its nuclear program ahead of indirect talks with Washington.

Araghchi says the fourth round of indirect negotiations between Tehran and Washington on the Islamic Republic’s nuclear program will be convened in the Italian capital of Rome on Saturday.

Iran will only accept concrete guarantees in indirect nuclear talks with the US as repeated American betrayals have shown that US signatures hold no weight, says a senior Iranian lawmaker.