Prince Charles has hit out at radical Muslims in a rare public interview calling for those coming to, or born in the UK, to “abide by our values”.
The Prince of Wales said the increasing rate youngsters are becoming radicalised is “alarming” and “one of the greatest worries.”
He was speaking in Jordan at the start of a six-day tour of the Middle East.
Speaking about the radicalisation of British youths, Prince Charles told the BBC: “Well, of course, this is one of the greatest worries, I think, and the extent to which this is happening is the alarming part.
“And particularly in a country like ours where you know the values we hold dear.
“You think that the people who have come here, [are] born here, go to school here, would imbibe those values and outlooks.”
British authorities say around 600 Britons have travelled to Syria or Iraq, where Islamic State militants have seized swathes of territory.
About half of them have returned home, raising fears of a possible attack on British soil.
Prince Charles said: “The frightening part is that people can be so radicalised either through contact with somebody else or through the internet, and the extraordinary amount of crazy stuff which is on the internet.”
He added the reason young people are being radicalised is a “search for adventure and excitement at a particular age”.
His remarks follow calls for him to raise concerns about human rights abuses during his tour.
Amnesty International UK had appealed to Charles to use his influence and “pass on a few well chosen words” as he tours the Gulf, including raising the case of jailed Saudi blogger Raif Badawi, who faces a decade behind bars and 1,000 lashes.
Kate Allen, Amnesty International UK director, said: “We don’t expect Prince Charles to give up the red carpets and state banquets and become a human rights campaigner, but as a man who knows the Middle East well we hope that he will use this visit to pass on a few well-chosen words to his royal hosts.”
The Prince’s tour of the Middle East will see him travel to Jordan, Kuwait, Qatar, and the United Arab Emirates.