By Yousef Saba, Gram Slattery, Pesha Magid and Federico Maccioni RIYADH (Reuters) - U.S. President Donald Trump signed a strategic economic agreement with Saudi Arabia on Tuesday as the oil power rolled out the red carpet for him at the start of a tour of Gulf states aimed at drumming up trillions of dollars in investments.

Multiple U.S. and Saudi companies will come together under a joint economic partnership to support artificial intelligence and computing infrastructure development in both countries.

Crown Prince and Prime Minister of Saudi Arabia, Prince Mohammed bin Salman bin Abdulaziz al-Saud, discussed with US President Donald Trump the bilateral relations between the