At least four British terror suspects have returned from Syria after being trained by the Islamic State to carry out attacks on the UK soil, according to a media report.
An anonymous defector told Sky News that four or five British men had spent six weeks training with ISIS and were sent back to the UK on a "mission".
"After we did the training, we joined the (ISIS) elite security force. We were very close to them (the foreign fighters), taking care of them. We didn't interfere in their business," said the former terror trainer for the dreaded group.
"They came from everywhere. The people trained for a month and a half. Some of them went back to their countries and some stayed with us," he told the news channel.
He was interviewed after two reporters for the news channel spent four months posing as jihadists willing to carry out a terror attack.
They were approached by British couple Junaid Hussain, 21, and Sally Jones, 45, and coached on how to carry out bombings.
Hussain, a hacker convicted of targeting Tony Blair and leaking his information online, is thought to be high on the list of US drone strike targets.
The married couple, based in the part of Syria held by the ISIS, advised the journalists on how to make bombs using a pressure cooker, and provided a guidebook first uncovered by 'The Times' in April.
There were also unsubstantiated claims that the royal family would be the targets of an attack this weekend at the World War II Victory in Japan Day commemorations, by another bomber using similar methods.
Sky informed Scotland Yard counterterrorism command of the alleged plots before broadcasting its report yesterday.
A spokesperson for the Scotland Yard said: "The UK threat level from international terrorism remains severe. We would like to reassure the public that we constantly review security plans for public events, taking into account specific intelligence and the wider threat.
"Our priority is the safety and security for all those attending or involved. The public are encouraged to continue with their plans to attend or take part in events as normal," he said.
