Three British women are among foreign suspected Islamic State members captured by Kurdish forces in Syria in recent days, the Telegraph understands, as they battle for the jihadists’ final redoubt.

A mother and her two daughters - in their late 20s and travelling with young children - fled the town of al-Shafaa in eastern Deir Ezzor province late last week among other wives of Islamic State of Iraq and the Levant (Isil) fighters and local civilians, Kurdish sources confirmed.

The family has been sent to al-Hawl detention camp in northeastern Syria, joining another British woman, Zara Iqbal, from London, who has been there for several months.