Iran demanded a truce in Lebanon and the release of its blocked assets on Friday as US Vice President JD Vance warned Tehran not to "play" Washington, casting doubt on planned ceasefire talks in Pakistan.
Despite the temporary truce struck between the foes, deep disagreements remain as to the way forward in negotiations aimed at transforming the fragile ceasefire into a lasting peace deal.
"If the Iranians are willing to negotiate in good faith, we're certainly willing to extend the open hand," Vance told reporters before taking off for Pakistani capital Islamabad from Joint Base Andrews in Maryland.
But "if they're going to try to play us, then they're going to find the negotiating team is not that receptive", he said.
Iran's parliament speaker shortly thereafter put forward two measures he said "must be fulfilled before negotiations begin": a ceasefire in Lebanon and the release of Iran's blocked assets.
Both had been "mutually agreed upon between the parties" but had "yet to be implemented", Mohammad Bagher Ghalibaf wrote on X.
Official sources say the talks in Islamabad will cover several sensitive points, including Iran's nuclear enrichment and the free flow of trade through the Strait of Hormuz.
Meanwhile, Lebanon and Israel are set to have direct negotiations in the US following a harrowing Israeli massacre on Wednesday that killed over 300 people nationwide.
Peace negotiations between the two sides come as fighting between the Israeli army and Hezbollah in the country's south continues, with heavy fighting reported around the town of Bint Jbeil.