One person has been killed and eight others injured in an attack on King Fahd International Airport in the eastern Saudi city of Dammam, the country's General Authority of Civil Aviation (GACA) announced on Wednesday.
All wounded individuals, whose injuries range from minor to critical, were transported to hospitals to receive medical attention, GACA said in a statement.
Earlier the same day, two people were killed after Saudi air defences intercepted a drone attempting to strike a facility at Saudi Aramco's Shaybah oilfield, the Ministry of Energy said.
The Dammam attack is the latest in a series of assaults on Saudi airports as conflict intensifies between Houthi forces and the Saudi-backed, internationally recognised Yemeni government.
Last week, the kingdom reported that a projectile strike on Riyadh's King Khalid International Airport on October 11 killed one person and injured 11. A separate attack on the same airport on October 10 claimed the lives of 12 people and injured more than 300.
On Wednesday, the US State Department ordered diplomats and their family members to depart from its missions in Saudi Arabia amid the ongoing attacks. There are also plans to withdraw family members from a number of other US missions in the region, according to sources.
The US Embassy in Riyadh issued a security alert on Wednesday warning of possible further attacks on Saudi Arabia.