Speaking after a consultative meeting of Arab and Islamic foreign ministers in Riyadh, bin Farhan accused Tehran of premeditated hostile actions against its neighbours, both directly and through regional proxies, and urged it to halt further escalation.

“This pressure from Iran will backfire politically and morally and certainly we reserve the right to take military actions if deemed necessary,” he told a news conference.

Saudi Arabia’s defence ministry said it intercepted and destroyed four ballistic missiles targeting Riyadh, with debris falling near a refinery south of the capital. Interceptors were seen launched near the venue hosting the diplomatic gathering as ministers from countries including Turkey, the United Arab Emirates, Jordan, Qatar and Syria convened.

The strikes marked a significant moment in the conflict, with residents in Riyadh reporting blasts and receiving warning alerts for the first time since hostilities began.

Saudi authorities say the kingdom has faced hundreds of missiles and drones since the start of the conflict, the vast majority of which have been intercepted.

The escalation follows Iran’s vow to target oil and gas infrastructure across the Gulf after what it described as an Israeli strike on its facilities in the South Pars gas field.

Attacks on Wednesday affected energy sites in Qatar, the United Arab Emirates and Saudi Arabia, raising concerns over global supply disruptions.The widening conflict, now in its third week, has already driven oil prices higher and unsettled energy markets as critical infrastructure comes under repeated threat.

Saudi Arabia and Iran restored diplomatic relations in 2023 after years of rivalry that saw them support opposing factions across the region.

Bin Farhan said Riyadh still preferred diplomacy but warned that continued Iranian actions could eliminate any remaining basis for trust.

“If Iran doesn’t stop immediately, I think there will be almost nothing that can re-establish trust,” he said.

The attack on South Pars, a major component of the world’s largest natural gas deposit shared by Iran and Qatar, drove oil prices higher and intensified concerns over global energy supply disruptions.

Trump said Israel had acted “out of anger” and that Washington had no advance knowledge of the operation.

QatarEnergy reported “extensive damage” and sizeable fires at facilities in Ras Laffan Industrial City following missile strikes, while Saudi Arabia said it intercepted four ballistic missiles aimed at Riyadh and thwarted a drone attack on a gas installation in its eastern region.

The strikes mark a significant expansion of hostilities into critical energy infrastructure in the Gulf, a region central to global oil and gas markets. Ras Laffan processes roughly a fifth of the world’s liquefied natural gas, making it one of the most strategically important energy hubs globally.

Iran carried out additional missile attacks on Thursday targeting Qatari gas facilities and the Saudi capital, according to officials, heightening fears of prolonged disruption to energy flows.

The South Pars field itself is a cornerstone of Iran’s gas production and is geologically linked to Qatar’s North Field, underscoring the cross-border risks posed by military escalation.In a post on X, Trump said Israel’s strike had been a response to developments in the region but warned Tehran against further escalation.

He described Iran’s subsequent targeting of Qatar’s LNG facilities as “unjustified,” adding that Doha had not been involved in the initial attack.

Trump said the United States would prevent further Israeli strikes on South Pars unless Iran “unwisely” targets Qatar again. He also warned that any such move by Tehran would trigger a large-scale U.S. response against the gas field.

Earlier reporting by the Wall Street Journal said Trump had approved Israel’s plan to strike Iran’s gas infrastructure, though the president said Washington had no prior knowledge of the specific operation.

Regional fallout widensIran’s actions reflect a broader pattern since the conflict began nearly four weeks ago, with Tehran targeting not only Israel but also U.S. diplomatic and military facilities across the Gulf. Iranian officials have also warned neighbouring states against facilitating attacks on its territory.

Saudi authorities said their air defences successfully neutralised incoming threats, while Qatar has yet to detail the full operational impact of the damage to its LNG facilities.

The widening scope of attacks on energy infrastructure has raised geopolitical and economic stakes, with markets reacting to the potential for sustained disruption across key supply routes and production hubs.