Iranian foreign minister Mohammed Javad Zarif is suggesting nuclear talks with 6 world powers can be extended beyond a July 20th deadline.
"We are hoping still to work as close to the July 20th as possible, but that doesn't mean that if we need, if we see feasibility of extension as well as a useful purpose for extension that we won't be able to exercise that option."
US Secretary of State John Kerry has been suggesting that "tangible progress" has been made in the current round of talks in Vienna.
However, Kerry also admits gaps still remain on a number of key issues.
The nuclear talks in Vienna involving Iran and the P5+1 grouping have been continuing this week ahead of July 20th.
This is when the 6-month interim agreement reached last year will expire.
If it expires without an extension, previous levels of sanctions imposed on Iran will resume.
