Prospects for negotiations and peace between the Palestinians and Israel have been destroyed and the hand of extremists strengthened by the surprise deal between Israel and the United Arab Emirates, a top Palestinian diplomat has told Sky News.

In a frank and downbeat interview, negotiator Dr Saeb Erekat said the landmark agreement between the Israeli prime minister and the Abu Dhabi crown prince, brokered by Donald Trump's son-in-law Jared Kushner, was "an Arab dagger - a poisonous dagger - in my back".

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