23,000 potential jihadis in UK, but authorities admit they can't monitor all

The number of potential UK-based terrorists on the radar of the British security services is as high as 23,000, it has emerged.

The figure is more than six times the figure previously released by the Home Office at the time of last month's Manchester bombing.

Then, it was revealed the security services had 500 live investigations into more than 3,000 suspected radical jihadis, including about 400 people who have remarkably been allowed to return to their shores after fighting with terror group Islamic State (ISIS) in Syria.

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