Dubai:An Indian national was killed and two others were injured in an attack on Dammam airport in Saudi Arabia, officials said on Thursday, a day after another compatriot was injured in a drone attack targeting the kingdom's Shaybah oilfield, amid a spate of strikes by Yemen's Houthi rebels on key infrastructure in the country. The Indian Embassy in Riyadh said Saudi authorities have informed it about the casualties in the attack on King Fand International Airport in Dammam on Wednesday night.