(BBC) The case of runaway Shamima Begum, who is fighting to return to the UK from Syria, will go to the Supreme Court.
The Court of Appeal decided that the case raised a point of law of public importance that only the Supreme Court can resolve.
Earlier this month, three Court of Appeal judges ruled Ms Begum should be allowed back to London to fight for the return of her citizenship.
The government said that decision was deeply flawed.
Ms Begum, now 20, was one of three schoolgirls who left London to join the Islamic State group in Syria in 2015.
