Vienna, July 5, IRNA � Head of Atomic Energy Organization of Iran Ali Akbar Salehi and the US Energy Secretary Ernest Moniz proceeded with discussion on technical issues after Foreign Minister Mohammad Javad Zarif and US Secretary of State John Kerry ended talks on Sunday.

Salehi and Moniz held negotiations in presence of Iranian and the US teams.

Meanwhile, deputy foreign ministers went ahead with nuclear talks on Sunday.

Following end of expert works, annexes to the context of the deal were handed over to the deputy foreign ministers.

They are currently working on four annexes to remove differences. The main difference is about sanctions and corresponding acts.

Seyed Abbas Araqchi said last night that a number of disputed cases may be referred to the ministers.

He said that the deputy foreign ministers are trying to finalize the context of the deal in the next two days.

On corresponding acts Iran expects the other party to make, Araqchi said that to synchronize the acts with Iran is the Iranian major demand. 'Iran offered proposals to settle the issue.'

Araqchi said that the principle to synchronize the acts is important for Iran, so Iran is hopeful to reach wise solution.

By IRNA