A senior Iranian official has warned European countries against playing into the hands of the United States and the Israeli regime as European signatories to the 2015 Iran nuclear deal propose fresh sanctions against Tehran under the pressure of Washington.

"Defense capabilities, particularly the missile program, of the Islamic Republic of Iran, which have a deterrent nature, will firmly be continued based on national security necessities," Secretary of Iran's Supreme National Security Council (SNSC) Ali Shamkhani said in a meeting with Oman's Foreign Minister Yusuf bin Alawi in Tehran on Saturday.

"Political and media propaganda will have no impact on their development," he added.

Britain, France and Germany have proposed new EU sanctions on Iran over its missile program and its regional role, a confidential document said on Friday.

The joint paper was sent to the EU capitals to sound out support for such sanctions as they would need the backing of all 28 member states of the bloc, Reuters quoted two people familiar with the matter as saying.

The proposal is allegedly part of an EU strategy to appease US President Donald Trump and preserve the Iran nuclear deal, officially known as the Joint Comprehensive Plan of Action (JCPOA), signed between Tehran and the P5+1 group of countries in 2015 amid constant US threats to withdraw from it.

Shamkhani said US failure to fulfill its obligations and its illegal approach to the JCPOA as well as Europe's passivity with regard to Washington's approaches clearly show that regional countries need to focus on finding a solution to the ongoing issues and crises in the region by themselves.

"The Islamic Republic of Iran will give a proper and due response to the US constant violations of its commitments under the JCPOA and will accept no change, interpretation or new measure that would limit the JCPOA," the SNSC secretary said.

His comments came a day after Iranian Foreign Minister Mohammad Javad Zarif warned the US against the "painful mistake" of pulling out of the Iran nuclear agreement.

"Considering what has been envisaged in the JCPOA in the field of research and development and the Islamic Republic of Iran's continued measures to develop its peaceful nuclear capability, if the US makes the mistake of exiting the JCPOA, it will definitely be a painful mistake for the Americans," Zarif told reporters.

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Elsewhere in his comments, Shamkhani said growing deep relations between Iran and Oman had led to consensus on regional issues.

"The development of constructive and all-out relations with neighbors based on common interests is the top priority of the Islamic Republic of Iran's foreign policy," he added.

The senior Iranian official lashed out at certain regional countries for adopting "a hasty and arrogant attitude and statements" which have posed serious challenges to the handling of regional crises.

He expressed his concern about the killing of Yemeni women and children in airstrikes by Saudi Arabia and the United Arab Emirates as well as the catastrophic conditions of the oppressed Yemeni people.

"The shared view of Iran and Oman on the Yemeni crisis is based on putting an immediate end to war, establishing ceasefire, lifting the blockade, dispatching humanitarian aid and holding Yemeni-Yemeni dialogue to form new political structures based on the Yemeni people's demands and vote," Shamkhani pointed out.

He emphasized that the Yemeni crisis cannot be settled through military approaches and urged a political initiative in this regard.

About 14,000 people have been killed since the onset of Saudi Arabia’s military campaign against Yemen in March 2015. Much of the Arabian Peninsula country's infrastructure, including hospitals, schools and factories, has been reduced to rubble due to the war.

The United Nations says a record 22.2 million people are in need of food aid, including 8.4 million threatened by severe hunger.

The UN Security Council on March 15 warned about the worsening humanitarian situation in war-battered Yemen, stating the status quo is having a “devastating” impact on the lives of civilians in the impoverished Arab country.

“The Security Council expresses its grave concern at the continued deterioration of the humanitarian situation in Yemen, and the devastating humanitarian impact of the conflict on civilians,” it said in a statement.

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Oman urges dialogue instead of military approaches

The Omani foreign minister, for his part, criticized military approaches to regional issues and urged the path of dialogue and understanding instead.

He added that Oman regards Iran as a trustworthy neighboring country and commended the Islamic Republic's role in establishing stability and security in the region.

Bin Alawi arrived in Tehran Friday night on a two-day visit to hold talks with senior Iranian officials about mutual and regional issues.

Iran rejects speculations about bin Alawi's visit

Iranian Foreign Ministry Spokesman Bahram Qassemi on Saturday rejected speculation about a link between the Omani minister's visit to Tehran and US Defense Secretary James Mattis's recent travel to Muscat and said bin Alawi's trip was taking place with the purpose of strengthening mutual relations.

"Although Oman has very good relations with many countries in the world, Mr. Yusuf bin Alawi's trip to Tehran has nothing to do with Mattis's visit to this country," Qassemi said.

He strongly rejected any link between bin Alawi's visit to Tehran and US policies on the JCPOA.

The Iranian spokesperson said, "Iran and Oman are cooperating with each other on a wide range of issues and the two sides seek to use the two countries' existing capacities to further deepen economic, commercial, banking and financial cooperation."