Zhang Jun, China's permanent representative to the U.N., said Sunday that Beijing is "very much concerned about the alarming, worrisome situation in the occupied territory of Palestine."
Just the fact that Trump committed his administration to an Israeli-Palestinian peace process sends a message of defiance to the Israeli leadership.
Trump stopped short of reasserting a U.S. commitment to eventual Palestinian statehood and instead said again that he would be "satisfied with whatever makes both parties happy."
Haley's comments came after Trump said on Wednesday that he was open to ideas beyond a two-state solution.
Abbas said he agreed with Trump's call for Israel to refrain from settlement building in the occupied West Bank and East Jerusalem.
Trump considers Middle East peace a "high priority," the White House official said. The president has given his son-in-law, Jared Kushner, the job of negotiating a peace deal.
Some 570,000 Israelis now live in the Israeli-occupied West Bank and in East Jerusalem, together home to more than 2.6 million Palestinians.
A two-state solution would lift the Israeli and the Palestinian economy by $173 billion; an all-out war would cost $296 billion.
"I frankly do not know if it is already too late," outgoing U.N. Middle East envoy Robert Serry said.
The Palestinians' chief peace negotiator has laid out plans to establish an independent Palestine within three years, even if it means ignoring pleas from the US not to push ahead