British police say they are 'stretched' by the amount of inquiries they have ongoing into Islamist-related extremism.
The rare admission from the Metropolitan Police's anti-terror chief Mark Rowley also contains a warning the threat will last for 'years'.
He says counter-terrorism policing has had to adapt quickly to conflicts in Syria and elsewhere in the region drawing in fighters from the UK.
UK reporter Tom Swarbrick says police are reporting this year has been a 'step change.'
IN: "The numbers....
OUT: ...that country."
DUR: 26 seconds
ALT:
UK reporter Tom Swarbrick says Mark Rowley presents a developing threat for police to deal with.
IN: "He pointed....
OUT: ...activity."
DUR: 21 seconds