US president Donald Trump has arrived in Saudi Arabia on his first major overseas tour of his second term. He attended a lavish lunch with some of America’s most prominent economic and tech leaders He will then fly on to Qatar - which has controversially gifted him an airliner to replace Air Force One - and then the United Arab Emirates.

Also in the programme: the head of the main UN agency for Palestinians has told the BBC that Israel's blockade of food deliveries to Palestinians in Gaza constitutes a war crime, a claim that Israel denies; and we speak to the British adventurer who climbed Mount Everest to complete the world's longest triathlon.

(Picture: US President Donald Trump shakes hands with Saudi Crown Prince Mohammed Bin Salman after arriving in Saudi Arabia. Credit: Bandar Algaloud/Courtesy of Saudi Royal Court)