The UAE ambassador to the US has warned Israel against annexing parts of the West Bank, AlJazeera reported.

According to Yousef al-Otaiba, this move would "upend" Israel's efforts to improve ties with Arab countries.

"Annexation would - certainly and immediately - upend all Israeli aspirations for improved security, economic and cultural ties with the Arab world and the UAE," al-Otaiba wrote in an op-ed in Israel's Yedioth Ahronoth newspaper.

Al-Otaiba was among the three Arab envoys who attended US President Donald Trump's January unveiling of his Middle East plan, which allows Israel to annex around 30% of the West Bank, while the plan was immediately rejected by the Palestinians.