An air raid has struck several cars in northwestern Syria, killing at least eight people, including al-Qaida-linked fighters and a senior commander with a Chinese Islamic militant faction, an activist group and a local jihadi commander said Monday. The attack occurred late Sunday on a road leading from the town of Sarmada to the Bab al-Hawa area on the border with Turkey, said the Britain-based Syrian Observatory for Human Rights and a local commander with the Fatah al-Sham Front, an al-Qaida-linked group.