RAMALLAH, Aug. 30 (Xinhua) -- An aide to Palestinian President Mahmoud Abbas condemned on Thursday the remarks of United States peace envoy Jason Greenblatt threatening to find an alternative to the Palestinian Authority.

Nabil Abu Rudeineh said in an official statement published by the state-run Palestinian news agency (WAFA) that "Greenblatt remarks are rejected, unaccepted and a severe intervention of the Palestinian internal affairs."

Abu Rudeineh, the spokesman of the Palestinian Authority presidency, said "we will confront these remarks as we confronted the Deal of the Century," which is a Middle East peace plan that U.S. President Donald Trump is working on.

"These remarks are part of the deal," Abu Rudeineh said, adding "the Palestinian people who can determine their future and elect their legal leadership will stand against the U.S. conspiracies."

The spokesman added that the suspected plans plotted against the national Palestinian cause under pretexts of the humanitarian situation in the Gaza Strip.

He warned all the Palestinians from dealing "with these conspiracies which aim at liquidating the Palestinian cause and ruin all the Palestinian national issues."

"The U.S. policies are contrary to all international laws, mainly the recognition of Jerusalem as the capital of Israel, the transfer of its embassy to the city, and trying to liquidate United Nations Relief and Works Agency for Palestine Refugees," he said.

Earlier, Greenblatt said in a written statement published in the media that "the Palestinian Authority should be part of the solution for the Palestinians in Gaza and Palestinians as a whole," adding "if not, others will fill that void.