Political leaders and leaders of Islamic nations have condemned countries that have made the "illegal and irresponsible decision" to recognize Jerusalem as the capital of Israel.
In a joint statement on Saturday, at the end of a summit From the 57-member Organization for Islamic Cooperation (OIC) in Mecca, Saudi Arabia, the leaders called on the countries that moved their embassies to Jerusalem, to reconsider its strategy, which in its view represents "a grave violation of international law and international legitimacy".
The OIC called on member countries to take "appropriate measures" against countries that post their messages to Jerusalem.
US President Donald Trump recognized Jerusalem as Israel's capital in December 201
Guatemala followed shortly thereafter.
"The Palestinian people have the right to realize their inalienable national rights, including their right to self-determination and the establishment of an independent and sovereign Palestinian state," reads the final declaration.
Jerusalem Is Claimed by Both Israelis and Palestinians as Its Capital and Capital The US step was sharply condemned by Palestinians who said the US could no longer act as a neutral mediator between the two sides.
"Deal of the Century"
The statement of the OIC comes as Trump's son-in Jared Kushner is preparing to discuss economic aspects of his long-awaited Middle East peace plan at a Bahrain conference later this month.
The plan, referred to as the "Deal of the Century," has already been rejected by the Palestinians. Trump's policies have shown that he is open-minded in favor of Israel.
Kushner, who was on the final leg of a regional tour of Jerusalem on Friday to sell the plan, had sought an alliance with Saudi A Rabia against Iran as a means to gain Arab support.
But Saudi Arabian King Mohammed bin Salman said to the leaders of the IOC countries gathered at the summit, "The Palestinian cause is the cornerstone of the work of the Organization for Islamic Cooperation and it is the focus of our attention until the fraternal Palestinian people obtained all its legitimate rights.
"We reaffirm our clear rejection of any measures that would affect the historical and legal status of Quds. [Jerusalem]
The meeting was the third international summit since Thursday in Saudi Arabia.
Tensions with Iran
The OIC also supported Saudi Arabia because of growing tensions with Iran when King Salman warned that "terrorist" attacks in the Gulf region could endanger the global energy supply.
The remark came after sabotage attacks had damaged four ships, two of them Saudi oil tankers off the coast of the United Arab Emirates (UAE) and two Yemeni drone strikes had shut off a key Saudi oil pipeline.
"We acknowledge that terrorist actions are aimed at not only the Kingdom and the Gulf, but also the safety of shipping and global oil supplies," the King told OIC Member States.
Tehran has emphatically denied involvement in any of the incidents.
In a tweet shortly before the summit began, the king vowed to counter "aggressive threats and subversive activities."
"The undermining of the security of the kingdom effectively undermines the security of the US Arab and Islamic world," said OIC General Secretary Yousef bin Ahmed al-Othaimeen, calling for solidarity shared by other members.
According to analysts, Riad's strategy to combat Tehran is not supported by divisions within the Gulf Cooperation Council (GCC) countries.
"This strategy of the GCC states is flawed, flawed because in a sense they do not want to speak to Iran, Iran has asked for dialogue and they do not want to sit at the table and talk to Iran and all the problems There are conflicts between the GCC member states and the Gulf Cooperation Council is not united and fragmented, "said Abdullah Baaboob, an analyst of the Gulf and the Middle East to Al Jazeera.
The OIC summit also called on the US to remove Sudan from its list of state sponsors of "terrorism".
Al Jazeera and news agencies