Saudi Arabia said it intercepted and destroyed four drones targeting a key oil facility in the kingdom's eastern region, as tensions across the Gulf intensified amid the ongoing US-Iran war.
The Saudi defence ministry said the drones were heading towards the Shaybah oil field, located near the border with the United Arab Emirates.
The incident comes as the wider Middle East faces a surge in missile and drone attacks following the escalation between Israel and Iran.
The US ordered non-emergency government employees and their family members to leave Saudi Arabia amid rising security concerns.
Several Gulf states reported fresh missile and drone attacks on Monday, with explosions heard in Qatar's capital Doha and a projectile strike on Sunday killing two people and injuring 12 others in Saudi Arabia.
The escalating conflict has shaken global markets, with both Brent and WTI crude prices surging above $100 per barrel amid fears of supply disruptions.