The parents of a Briton who travelled to Syria and has been dubbed 'Jihadi Jack' were arrested by police after sending their son money

The Sunday Times

The parents of a British man who travelled to Syria and has been dubbed "Jihadi Jack" were arrested by police on suspicion of sending money overseas which could have been used for terrorism purposes, Channel 4 News revealed.

Jack Letts, originally from Oxford, left Britain for Syria two years ago after converting to Islam in Oxford, The Sunday Times recently reported.

His parents, Johh and Sally Letts, told Channel 4 they were arrested after sending their son money for food and glasses.

"I think it's crazy that we can't send a penny to help him because we'll be seen as supporting terrorism," John Letts said.

Sally Letts added: "It's the worst feeling in the world."

In a statement given to the BBC, Thames Valley Police said: "A 55-year-old man and a 53-year-old woman from Oxford were arrested on suspicion of sending money to Syria which could be used for terrorism purposes ... and were bailed until February 17."

Letts recently released his first comments since he was accused of being a member of ISIS, the barbaric terrorist group that controls large swathes of territory in Iraq and Syria, accusing the media of demonising young Britons who convert to Islam.

In Facebook posts seen by The Independent newspaper he wrote: "Its sort of awkward when the media thinks your ISIS and your not. Thinks you have a son and you dont. Thinks your married when your not."

"Mabye they got bored worrying about what colour socks certain celebrities wear and took out the frustration on me?"

Channel 4 News/YouTube

Sally and John Letts, parents of Jack Letts.

According to the British government at least 700 people from the UK have travelled to Syria and Iraq to fight for jihadist groups, including ISIS.

Among the most infamous was former London schoolboy Mohammed Emwazi, commonly known as "Jihadi John", who featured in several Islamic State ISIS execution videos.

Emwazi was killed by a drone strike in Raqqa, the self-declared capital of Islamic State, late last year.