U.S. allies and partners in the Middle East again are urging restraint from both the United States and Iran as the Trump administration warns of a possible strike and builds up its military presence in the region, according to an Arab diplomat familiar with the matter.

Saudi Arabia, Turkey, Oman and Qatar have all been in touch with leaders in Washington and Tehran to make the case that an escalation by either or both sides would cause massive destabilization throughout the region and affect energy markets, according to the official, who spoke on condition of anonymity to discuss private diplomatic discussions.