Palestinian President Mahmoud Abbas, Jordan’s King Abdullah and Egyptian President Abdel Fattah al-Sisi, who all received phone calls from Trump on Tuesday, joined a mounting chorus of voices saying any unilateral U.S. move on Jerusalem could unleash turmoil.

Trump notified Abbas “of his intention to move the American Embassy from Tel Aviv to Jerusalem,” Abbas spokesman Nabil Abu Rdainah said.

Abbas, in response, “warned of the dangerous consequences such a decision would have to the peace process and to the peace, security and stability of the region and of the world” and also appealed to the Pope and the leaders of Russia, France and Jordan to intervene.

The Jordanian monarch told Trump that moving the embassy would have “dangerous repercussions” for the region and would obstruct U.S. efforts to promote Israeli-Palestinian peace talks, according to a palace statement.

Egypt’s Sisi cautioned Trump against “taking measures that would undermine the chances of peace” and complicate matters in the Middle East, a presidential statement released in Cairo said.

None of the leaders’ statements said whether Trump, who was also due to talk to Israeli Prime Minister Benjamin Netanyahu, specified the timing of an embassy move.

But U.S. officials, speaking on condition of anonymity, said Trump would sign a national security waiver – as have his predecessors – keeping the embassy in Tel Aviv for another six months but would commit to expediting a move. It was unclear, however, whether he would set a date.

Israeli officials are withholding comment, reportedly at the White House’s request. More to come…