RIYADH — Saudi Arabia's General Authority of Civil Aviation (GACA) announced early Sunday that 12 people were killed and 309 others injured in Saturday's attack on King Khalid International Airport in Riyadh.GACA confirmed that the fatalities included four Saudi citizens, two Bangladeshis, and one national each from the United States, Egypt, Jordan, Syria, Palestine and Sudan.The authority said the attack left 309 people injured, including several in critical condition. All injured individuals are receiving medical treatment at hospitals.GACA expressed its condolences to the families of those killed and wished the injured a speedy recovery.The authority also confirmed that the attack caused property damage, adding that assessments were underway to determine its extent.Saturday's attack prompted the temporary suspension of operations at King Khalid International Airport as authorities assessed the damage and verified the safety of airport facilities.In its initial statement, GACA said several people had been injured in the attack, with the full casualty toll still being determined.The authority said the suspension was necessary to allow emergency teams and relevant agencies to complete safety assessments and ensure the security of passengers, airport personnel and civil aviation infrastructure.The latest attack came just two days after three Saudi citizens were killed and several others injured in two separate attacks on the same airport on Thursday.