Two people were killed and eight others injured in an attack on King Fahd International Airport in Dammam, eastern Saudi Arabia, on Wednesday evening, according to the kingdom's General Authority of Civil Aviation (GACA).
The authority confirmed Thursday that the fatalities were a Saudi citizen and an Indian resident, while the injured included Saudi, Indian, Yemeni, Bangladeshi and Nepalese nationals.
GACA did not specify the nature of the attack, which occurred amid intensifying hostilities involving Yemen's Houthi movement.
Earlier Wednesday, two people from the Philippines and Nepal were killed by debris from an intercepted drone targeting a Saudi Aramco processing facility at the Shaybah oilfield.
Saudi Arabia's Energy Ministry said the incident also caused a contractor's vehicle to catch fire.
The Saudi-led coalition subsequently reported intercepting four additional drones Wednesday night.
The incidents followed deadly attacks on Riyadh's King Khalid International Airport earlier in October.
Saudi authorities reported significant casualties from strikes on October 10 and 11, although accounts differed on the precise death toll.
According to Saudi authorities cited by the BBC, at least 21 people have been killed in attacks on Saudi airports since October began.
Washington ordered diplomats and family members to leave its missions in Saudi Arabia on Wednesday, while the US embassy in Riyadh warned of possible further Houthi attacks.
The attacks come as fighting escalates between the Houthis and Yemen's internationally recognised government, supported by Saudi Arabia.
The Houthis have previously described strikes on Saudi infrastructure as retaliation for Saudi military operations and restrictions affecting Houthi-controlled territory.
The movement also claimed Wednesday to have targeted military equipment at an airport in Yemen's southern city of al-Mukalla.
Meanwhile, Houthi-run media reported six deaths from air and artillery strikes over the preceding 24 hours.
Fighting continues near the strategic Bab al-Mandab Strait and across several Yemeni provinces.
Competing health authorities have reported substantial casualties during the renewed conflict, while the United Nations estimates that more than 256,000 people have been displaced.