Watch: Saudi Arabia lays on lavish welcome as China's Xi heralds 'new era' in relations

Saudi Crown Prince Mohammed bin Salman received President Xi Jinping on Thursday as the Chinese leader heralded "a new era" in Arab relations, with a lavish welcome signalling Riyadh's interest in deepening ties with Beijing.

Members of the Saudi Royal Guard riding Arabian horses and carrying Chinese and Saudi flags escorted Xi's car as it entered the royal palace in Riyadh, where Prince Mohammed greeted him with a warm smile.

Setting the tone for Xi's visit, his plane was escorted by Saudi air force jets as it entered Saudi airspace and a 21-gun salute was fired as senior Saudi royals met him at the airport on Wednesday, the Chinese foreign ministry said.

In an op-ed published in Saudi media, Xi said he was on a "pioneering trip" to "open a new era of China's relations with the Arab world, the Arab countries of the Gulf, and Saudi Arabia".

China and Arab countries would "continue to hold high the banner of non-interference in internal affairs, firmly support each other in safeguarding sovereignty and territorial integrity", he wrote.

Xi, due to meet with other Gulf oil producers and attend a wider gathering of Arab leaders on Friday, said these states were a "treasure trove of energy for the world economy... and are fertile ground for the development of high-tech industries".

Saudi Arabia and other Gulf states like the United Arab Emirates have said that they would not choose sides between global powers and were diversifying partners to serve national economic and security interests.

"Trusted partner"

China, the world's biggest energy consumer, is a major trade partner of Gulf states and bilateral ties have expanded as the region pushes economic diversification.

The "Belt and Road" initiative - Xi's signature infrastructure investment project - dovetailed with Saudi plans to diversify its economy under its "Vision 2030", Tianbo wrote in an article on Saudi-Chinese relations.