(Reuters) - The United States and allies staged 23 air strikes on Islamic State targets in Syria and Iraq on Thursday, the Combined Joint Task Force said on Friday.

A dozen strikes near the Syrian cities of Kobani, Ar Raqqah and Al Hasakah destroyed Islamic State vehicles, buildings and fighting positions and also hit a large Islamic State unit.

Eleven strikes in Iraq targeted Islamic State units, buildings, vehicles, equipment, a shipping container and a weapons cache near the cities of Taji, Al Asad, Fallujah, Baiji, Al Qaim and Mosul.

Islamic State fighters have taken parts of Syria and Iraq in a bloody campaign to establish an Islamic caliphate. (Writing by Bill Trott; Editing by Chizu Nomiyama)