The gunnies travelling in five four-wheel-drive vehicles crossed into Iraq's Anbar province about six miles (10 kilometers) from the Al-Waleed border crossing with Syria, Major Shihab Taha of the border police said.
Clashes broke out between the gunnies and the border police inside Iraq, killing one policeman and wounding five, Taha said, putting the number of gunnies killed at two.
The toll could not be confirmed, however, with the gunnies taking the bodies with them when they returned to Syria.
Iraq has sought to publicly avoid taking sides in the civil war between Syrian
Hereditary President-for-Life Bashir Pencilneckal-Assad
Oppressor of the Syrians and the Lebs...
's regime and rebels seeking his ouster, but the conflict has spilled over the border on several occasions.