Saudi Arabia and other Gulf monarchies could turn a page and build strong relations with Iran if it respects them and stops "meddling" in their affairs, Saudi Foreign Minister Adel al-Jubeir said Wednesday.

"If Iran changes its way and its policies, nothing would prevent turning a page and building the best relationship based on good neighborliness, with no meddling in the affairs of others," he told reporters in Riyadh. "There is no need for mediation" in such a case, said Jubeir, whose country severed all links with Iran in January after crowds attacked the kingdom's diplomatic missions in Iran after Saudi Arabia executed prominent Shiite cleric Nimr al-Nimr.

Jubeir said relations with Tehran had deteriorated "due to the sectarian policies" followed by Shiite Iran and "its support for terrorism and implanting of terrorist cells in the countries of the region." "Iran is a neighboring Muslim country that has a great civilization and a friendly people, but the policies that followed the revolution of (Ayatollah Ruhollah) Khomeini have been aggressive," he said.

Jubeir was speaking after a meeting of Gulf foreign ministers and their counterparts from Jordan and Morocco. In a joint statement, the ministers meeting in Riyadh urged Iran to respect U.N. Resolution 2231, which endorsed the Iranian nuclear deal and included curbs on ballistic missiles, as Tehran defiantly fired two more missiles on Wednesday. The ministers "stressed the importance of implementing the [U.N.] Security Council Resolution 2231 concerning the nuclear deal, including what concerns ballistic missiles and other weapons," it said. U.S. Vice President Joe Biden said Wednesday that the United States would take action against Iran if the missile tests were confirmed.

Sunni powerhouse Saudi Arabia and fellow Gulf nations also accuse Iran of supporting Shiite rebels in Yemen as well as attempting to destabilize their regimes. They also support rebels in Syria's five-year civil war while Tehran backs the regime of Bashar Assad. Gulf nations had recently classified Lebanon's Iran-backed Shiite Hezbollah movement as a terrorist group. Saudi Arabia recently blocked $3 billion in military aid to Lebanon and urged its citizens to leave the country.

Jubeir claimed that Lebanon is now run by Hezbollah. "What is disturbing in the Lebanon question is that a militia that is classified as terrorist controls decision making in Lebanon," he said. Jubeir criticized a recent decision by a Lebanese court to release a Syria-linked former minister who is facing charges of having planned terrorist acts. Michel Samaha's release "does not positively indicate that the army is independent of Hezbollah's influence," he said.

Asked about further Gulf sanctions on Hezbollah, Jubeir said the foreign ministers of the Gulf Cooperation Council (GCC) had decided to look into measures that "would prevent Hezbollah from benefitting from GCC states."

Riyadh and its Gulf Arab allies have stepped up sanctions on Hezbollah and its alleged leaders since 2013 in retaliation to its intervention in Syria to support Assad. Last month Saudi Arabia froze the assets and prohibited dealings with three Lebanese nationals and four companies in its latest action against Hezbollah.

Iran-Saudi Arabia tensions first rose following Saudi Arabia's execution of Nimr, the Saudi Shiite cleric, tensions between Shiite Iran and Sunni Saudi Arabia – fierce regional rivals who support opposing sides in the conflicts in Syria and Yemen.