Confusion has emerged ahead of high-stakes US-Iran negotiations in Islamabad. Earlier reports suggested Washington had agreed to release billions of dollars in frozen Iranian assets held in Qatar and other foreign banks. Iranian sources described the move as a sign of seriousness before talks. However, a White House official has now denied the claim, saying the United States has not agreed to unfreeze Iranian assets. The reported funds, estimated at around 6 billion dollars, were one of Tehran’s key preconditions for negotiations.