Authoritative Pakistani government official: The form of US-Iran negotiations remains uncertain.

A Pakistani government official said on the 11th that although the United States and Iran have confirmed that negotiations will be held that day, the format of the talks is still uncertain. The official said that the US and Iran have made various arrangements for the negotiations, including both face-to-face and back-to-back formats. Pakistan is also prepared to facilitate both face-to-face negotiations and back-to-back negotiations, with Pakistan acting as an intermediary to relay information. (Xinhua)