By Parisa Hafezi and Humeyra Pamuk
DUBAI/WASHINGTON, June 12 (Reuters) - Hopes grew on Friday for peace between Iran and the United States afterPresident Donald Trump said a deal could be signed as soon as this weekend, even as Tehran said it had not made a final decision on a pact.
The deal, if confirmed, would be the most significant diplomatic breakthrough yet to end the three-month-old war, which has killed thousands and sent global energy prices sharply higher after Iran all but closed the Strait of Hormuz to shipping.