Hundreds of British jihadis have returned from fighting in Syria, sparking a terror alert in Britain.
Senior security officials have said that around 250 British based ‘extremist tourists’ have returned home, and are now suspected of wanting to carry out attacks here.
The figure is five times higher than previously thought and includes several ‘veterans’ who have fought in Afghanistan and Pakistan.
MI5 and police have already intercepted an alleged serious plot by jihadis returning from the war torn region last Autumn.
They were said to be planning a Mumbai-style gun attack on civilians in a crowded place, possibly London.
The returnees are now being monitored by the security services, The Sunday Times reports.