As voting continues in the US mid-term elections, the head of Iran's National Security Council said the latest offer from the US was "unconvincing", likely signaling a collapse in talks on what most analysts see as the deadline for a successful conclusion of those talks.

As voting continues in the US mid-term elections, the head of Iran's National Security Council said the latest offer from the US was "unconvincing", likely signaling a collapse in talks on what most analysts see as the deadline for a successful conclusion of those talks.