Iran�s Foreign Minister Mohammad Javad Zarif says Israel is the main impediment to the universality of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT)�and the single violator of the accord�.

�Unfortunately, Israel�s possession of nuclear weapons and its refusal to engage with the international community has become the greatest impediment to the universality of this treaty,� Zarif told Press TV correspondent in New York upon the arrival�of�Iran�s delegation of nuclear negotiators in the city to attend the 2015 Review Conference of the Parties to the NPT.

Israel is widely believed to be the sole possessor of a nuclear arsenal in the Middle East with up to 400 undeclared nuclear warheads. Tel Aviv has rejected global calls to join the NPT and does not allow international inspectors to observe its controversial nuclear program.

�Israel is the single most violator of this international regime (NPT) which is the requirement of the international community,� Zarif stressed.

The top Iranian diplomat further underlined the need for the establishment of a nukes-free zone in the Middle East.

�Since [the] 1970s, the General Assembly of the United Nations has been calling for the establishment of a nuclear weapons free zone in the Middle East, he said.

He underlined that the call �for such a nuclear-free zone is not something new.

"In 1995, when the NPT was renewed, there was a declaration on the need for the universality of the NPT as well as the need for the establishment of the nuclear weapons free zone in the Middle East. This request, or requirement and demand of the international community and member states of the NPT was again repeated in 2010 in the last review conference,� Zarif said.

�One of the most important issues in the NPT review process is to look into ways and means of bringing about universality and bring about the Israeli compliance with NPT,� he added.

He also elaborated on the function of the NPT, stressing that the treaty �rests on three pillars: nuclear disarmament, non-proliferation�and the peaceful use of nuclear energy.�

He also said that the issue of Israeli compliance with the NPT will top the agenda in the 2015 Review Conference.

Zarif further noted that he will probably have a meeting with US Secretary of State John Kerry on the sidelines of the event during which the will discuss the issues surrounding negotiations on Iran� nuclear program. The meeting will be the first time since the groundbreaking talks on Iran�s nuclear program in the Swiss city of Lausanne earlier in the month.

The top Iranian diplomat said he will also hold separate meetings with EU foreign policy chief Federica Mogherini and some foreign ministers of the P5+1-- the United States, Russia, China, France, Britain, and Germany, engaged in talks with Iran over its nuclear program.

Zarif also said that he will make a speech on behalf of the Non-Aligned Movement countries�as Iran is the movement�s current chair. The countries of the Non-Aligned Movement represent nearly two-thirds of the United Nations members and contain 55 percent of the world population.

He further stressed that he will also sit for talks with foreign ministers of the countries in the region to discuss the ongoing crisis in Syria, Iraq, and especially in Yemen.

The NPT review conference, slated to be held from April 27 to May 22 at the UN headquarters, will address issues such as nuclear disarmament, nuclear non-proliferation, safeguards measures�and the peaceful use of nuclear energy.

By Press TV