Iranian President Masoud Pezeshkian has said Iran will pursue negotiations with the US after requests from "friendly governments in the region" to respond to a US proposal for talks.

In a statement on X, Pezeshkian said he had told Iran's Minister of Foreign Affairs Abbas Araghchi to pursue talks "provided that a suitable environment exists - one free from threats and unreasonable expectations".

The Iranian president's words come after the country's supreme leader Ayatollah Ali Khamenei warned any attack on Iran would spark a regional conflict.

US President Donald Trump has threatened to intervene in Iran over its nuclear ambitions and deadly crackdown on protesters, building up forces nearby.