THREE Turkish troops were killed and 10 injured in northern Syria yesterday in an attack Ankara blamed on the Syrian air force, a claim which is disputed by Syrian activists who say that Isis was responsible for the blast.

Turkey’s state-run Anadolu news agency reported that the attack took place near the Isis-held town of al-Bab.

But Isis claimed it carried out a suicide attack on Turkish troops near al-Bab on Wednesday, calling the Turkish account into question.