Move follows attack on Red Sea port of Yanbu, Saudi Arabia’s main oil export outlet, after Iran blocked Hormuz Strait.

Riyadh is angry about Iran’s “sustained campaign of aggression against the Kingdom, fellow GCC and other nations, cautioning that continued escalation would ultimately devastate Iran itself. " Riyadh

Saudi Arabia informed Iran's military attache, his assistant and three members ​of the embassy staff that they must ‌leave the kingdom within 24 hours after being declared persona non grata, the Saudi foreign ministry said on ​Saturday,

Saudi Arabia told Tehran continued attacks ⁠on the kingdom could push Riyadh to respond in kind, four sources familiar with the matter told Reuters.

Saudi oil officials said prices could easily soar past $180 a barrel if severe supply disruptions from the war in Iran last past April – potentially hammering foreign economies and the US as gasoline costs jump at the pumps.

Iran has launched thousands of missiles and drones at Persian Gulf countries that host American military installations since the start of U.S.-Israeli air strikes on Feb. 28.

Prices at such a level could lead the kingdom to be vilified and trigger a recession or consumer changes that crush demand.

Formula One Group cited the "ongoing situation in the Middle East," noting alternatives were considered to no avail.

Watch explosive footage and eyewitness clips as Iran’s missile and drone barrage hits deep into Saudi Arabia, with Riyadh’s air defenses scrambling to intercept ballistic threats and residents hearing loud booms amid the region’s hottest war escalation.