Suspected suicide bomber Kabir Ahmed left the UK to fight for IS. He is the second Islamist extremist from Derby to die abroad in recent years. Simon Cox investigates.

Suspected suicide bomber Kabir Ahmed left Derby to fight for IS. He is the second Islamist extremist in a decade to travel from the small suburb of Normanton to die abroad. Simon Cox looks at the sinister networks connecting the two men and investigates whether their leaders are still active in Derby.

Producer: Ian Muir-Cochrane

Researcher: James Melley

Additional reporting: Sajid Iqbal.