The International Atomic Energy Agency has revised its estimate of Iran's uranium stores, reducing it by 100 kilograms, Reuters reports.

Reuters indicates that the IAEA has offered no specific reason for the revision to its report which comes as Iran and the 5+1 approach the November 24 deadline for reaching a final and comprehensive deal in the nuclear disputes.

While there has been little indication that reaching a deal by that date is possible, Russian media have reported rumours of extending the deadline.

Iran's uranium stores as one of the remaining points of contention in the talks, as is the timeline for lifting the international sanctions against Iran.