Patrick Sykes

Iran has this 10-point plan that it talks about being the basis for negotiations.

It says that the U.S.

has accepted that as a basis for talks.

The U.S.

talks about its own 15-point plan.

So it does seem we are still some way apart.

even on the very broad contours of what is up for discussion this weekend.

The statements that came out of that at the end were pretty positive.

The Iranian foreign minister talking about how they've reached general agreement about principles.

The U.S.

coming out briefing the media a little later on, not as perhaps optimistically, but still saying there was progress and the Iranians are going to come back now.

Bloomberg's Patrick Sykes in Istanbul.

Officially, Iran is saying that it's exclusively about nuclear.

They've, on the record, ruled out any discussion of missiles.

And we assume that the position is the same with regard to militias in the region.

But we did have from the U.S.

Marco Rubio overnight saying that that had to be part of a deal.

Bloomberg's Patrick Sykes reporting from Istanbul.

It's not clear why they might not be keen on Turkey, but it is worth saying Oman has been a mediator, a host of talks before.

So perhaps they simply felt that was more comfortable.