Iran has decided to control some of its nuclear activities for six months. The decision has been taken as part of a landmark nuclear deal that has been reached with world powers on Sunday.

The six-month deal was attained in the early hours on Sunday. The deal stops the progress of Iran's nuclear program in exchange for an incomplete lifting of sanctions as the initial step to a complete final agreement.

In Tehran, Foreign Minister Mohammad Javad Zarif was admired as an `ambassador of peace'. This is because of vigorous efforts made by him during three rounds of Geneva discussions with world powers since October.

As per a translation by the Fars News Agency, Mr. Rouhani has admired the `divine successes' under the leadership of Khamenei.

Both Iran and the P5+1 group have declared success and revealed the other side as receiving limited and `reversible' gains, an offer to prevent domestic critics. The group includes the US, Russia, China, Britain, France, and Germany.

Fars quoted Mr. Khamenei as "Achieving what you have written is worth appreciation and praise to the nuclear negotiating team. and can be the basis for future smart moves".

Washington used to refer to Iran as part of an `Axis of Evil' and still believes that the Islamic Republic is the `most active' state supporter of terrorism.