An exclusive undercover investigation by Sky News gains a disturbing new insight into the tactics being used by Islamic State (IS).

We posed online as two individuals committed to jihad and were sent terror guidebooks by senior jihadists in Syria, including advice on raising funds and making weapons.

We learned IS is now focused on urging would-be recruits to carry out “lone wolf” attacks in the UK, and were told IS already has a number of potential bombers in Britain – some of whom have been trained in Syria and are ready to attack.