US officials on Wednesday warned of a possible strike on Riyadh, as the Saudi-led military coalition reported the interception of drones and missiles fired by Yemeni rebels towards the kingdom.

Forty-five American lawmakers have urged the US government to boycott next month's G20 summit in Riyadh unless Saudi authorities address key human rights concerns, according to correspondence released Wednesday.

Iran on Thursday accused Saudi Arabia of distorting facts and shifting the blame for its own "crimes", after the Saudi king slammed the Islamic republic in a UN address.

From scrubbing hate-filled school textbooks to a taboo-defying religious sermon, Saudi Arabia is pushing for another kind of normalisation after declining to establish formal relations with Israel -- co-existence with Jews.

A top Saudi military commander and his son were sacked on Monday over graft allegations, state media said, in the government's latest anti-corruption purge.

Saudi Arabia's King Salman arrived at a planned Red Sea megacity to "rest and recuperate", state media said Thursday, after the 84-year-old ruler underwent surgery to remove his gall bladder.

Saudi Arabia's King Salman was discharged from a hospital in the capital Riyadh after more than a week following surgery to remove his gall bladder, the Royal Court said.

The court said in a statement late Thursday the monarch, 84, left the King Faisal Specialist Hospital after a recovery.

Ailing Saudi King Salman chaired a virtual cabinet meeting from a hospital office late Tuesday, a day after he was admitted due to gall bladder inflammation, the Saudi Press Agency reported.

Saudi Arabia's King Salman has been admitted to a hospital in the capital, Riyadh, for medical tests due to inflammation of the gallbladder, the kingdom's Royal Court said Monday in a statement carried by the official Saudi Press Agency.

The statement said the 84-year-old monarch is being tested at the King Faisal Specialist Hospital. The brief statement did not provide further details.

Saudi Arabia said Tuesday that because of the coronavirus only "very limited numbers" of people will be allowed to perform the annual hajj pilgrimage that traditionally draws around 2 million Muslims from around the world.

The decision comes after weeks of speculation over whether Saudi Arabia would cancel the pilgrimage altogether or allow the hajj to be held in symbolic numbers. It's unclear why the government waited until just five weeks before the hajj to announce its decision, but the timing indicates the sensitivity around major decisions concerning the hajj that affect Muslims around the world.