Middle East crisis live: Houthis warn passengers against using Saudi airport after deadly attack on Riyadh

US president Donald Trump says he is weighing whether the US will join Saudi strikes against the Iran-backed Houthis The Houthis this morning have just also issued a warning to travellers and airlines against using Saudi airports following yesterday’s attack. It’s the first public message from the group since Saturday’s deadly assault. Houthi military spokesman Yahya Saree said airports and airspa…