The Jordanian foreign minister warned the United States of "serious consequences" if it recognized Jerusalem as the capital of Israel.
Ayman Safadi said he told his US counterpart Rex Tillerson that any declaration on the issue would provoke outrage in the Arab and Islamic world.
Speculation is growing that US President Donald Trump will declare Jerusalem as the capital of Israel in the near future, in fulfillment of a promise he made last year.
Jared Kushner, Trump's son-in-law, said no decision had yet been made.
"I have spoken with US Secretary of State Rex Tillerson about the dangerous consequences of the decision to recognize Jerusalem as the capital of Israel if he took the consequences of such a decision, which will show great anger across the Arab and Muslim world and further tension and undermine efforts to achieve peace," Safadi said in a tweet on Twitter.
There was no public comment from the US State Department on what the Jordanian minister said
Mahmoud Abbas, the Palestinian Authority president, is seeking international support to persuade Trump not to make the announcement.His office said he had telephoned world leaders on Sunday, including French President Manuel Macaron and Turkish Prime Minister Recep Tayyip Erdogan.
"The Palestinian president wanted to clarify the dangers of any decision to move the US embassy to Jerusalem or to recognize Jerusalem as the capital of Israel," Abbas said.
Palestinian leaders have previously warned that such a step would threaten the two-state solution.
Israel occupied East Jerusalem during the 1967 war in the Middle East. In 1980, Israel annexed East Jerusalem as a purely Israeli territory.
Under international law, East Jerusalem has occupied territory.
Israel insists that Jerusalem as its eternal capital is indivisible. But Palestinians want East Jerusalem as the capital of an independent Palestinian state.
Arab newspapers condemn Trump's policy towards Jerusalem
During the presidential election campaign last year, Trump expressed his strong support for Israel and promised to order the transfer of the US Embassy from Tel Aviv to Jerusalem on his first day in office.
The President will take his decision and still consider many different facts.The decision has been delayed, but speculation is mounting that he may announce it in a speech on Wednesday.
Speaking at a research center in Washington on Sunday, Kushner, one of Trump's top advisers, refused to be drawn into the discussion and said the president would announce his intention in due course.
"The president will make his decision and still look at many different facts, and when he makes his decision he will be the only person who tells you, not me."