Patrick Wintour

Move sparks outrage in Iran as diplomats try to broker deal between Tehran and Washington over nuclear programme

• US politics live – latest updates

Donald Trump plans to announce while on his trip to Saudi Arabia next week that the US will now refer to the Arabian Gulf or the Gulf of Arabia rather than the Persian Gulf.

The move has prompted outrage from Iranian leaders, and last-minute efforts are being made to persuade Trump to pull back from offending Iran in the midst of vital talks on the future of the Iranian nuclear programme. “If Trump went ahead with the proposal he would manage to unite every Iranian, pro- or anti-regime, against him, and that is a near impossible achievement,” one diplomat said.

Largely expected decision by international court of justice marks second diplomatic victory for Gulf state

An attempt by Sudan’s government to make the United Arab Emirates legally accountable for acts of genocide in West Darfur has been rejected by the international court of justice after the judges voted by 14 to 2 to declare they had no jurisdiction. By a narrower majority the judges voted 9 to 7 to strike the case entirely from the ICJ list.