The face-to-face talks between the American and Iranian delegations in Pakistan continued till early today, the most significant engagement since the 1979 Islamic revolution, to end a war that plunged the Middle East into violence and rocked the world economy.

A US official on Saturday denied reports that Washington has agreed to unfreeze Iranian assets.

Here are the key issues the two sides are expected to discuss

The $6 billion, originally frozen in 2018, had been due for release in 2023 as part of a US-Iranian prisoner swap but the funds were again frozen by the administration of President Joe Biden

US delegation, led by Vice President JD Vance and including President Donald Trump's special envoy Steve Witkoff and son-in-law Jared Kushner, landed in two US air force planes at an air base in Islamabad on Saturday morning

Pakistan’s capital was all set for historic negotiations between Iran and the US to end the war, as ceasefire violations threatened to derail hopes of peace in the Middle East and beyond.