UNITED NATIONS, May 9. /TASS/. United Nations Secretary General Antonio Guterres has called on all nations to support the Iran nuclear deal following the United States’ decision to exit from it.

In a press statement, the UN Secretary General expressed concern over this US’ decision. "I am deeply concerned by today’s announcement that the United States will be withdrawing from the Joint Comprehensive Plan of Action (JCPOA) and will begin reinstating US sanctions," he said. "I have consistently reiterated that the JCPOA represents a major achievement in nuclear non-proliferation and diplomacy and has contributed to regional and international peace and security.

"I call on other JCPOA participants to abide fully by their respective commitments under the JCPOA and on all other Member States to support this agreement," he stressed.

"It is essential that all concerns regarding the implementation of the Plan be addressed through the mechanisms established in the JCPOA. Issues not directly related to the JCPOA should be addressed without prejudice to preserving the agreement and its accomplishments," he stressed.

Earlier on Tuesday, US President Donald Trump announced Washington’s decision to withdraw from the Iran nuclear deal as it, in his words, leaves Iran a possibility to create a nuclear bomb bypassing all the restrictions. He said another agreement with Iran should be signed.

Meanwhile, UK Prime Minister Theresa May, French President Emmanuel Macron and German Chancellor Angela Merkel issued a joint statement calling on all other parties to the JCPOA to stay committed to their liabilities under it.

Iranian President Hassan Rouhani reiterated his country’s commitment to the deal, saying Teheran will continue to implement its liabilities.

The Joint Comprehensive Plan of Action (JCPOA), known as the deal on Iran’s nuclear program, was signed between Iran and six international mediators (the United Kingdom, Germany, China, Russia, the United States, and France) on July 14, 2015. On January 16, 2016, the parties to the deal announced beginning of its implementation. Under the deal, Iran undertakes to curb its nuclear activities and place them under total control of the International Atomic Energy Agency (IAEA) in exchange of abandonment of the sanctions imposed previously by the United Nations Security Council, the European Union and the United States over its nuclear program.