A German citizen appeared in court on terrorism charges, after he allegedly shared ISIS propaganda videos.
Florian Flegel, 22, was arrested at London Stansted Airport last week as he attempted to return to Germany.
He is accused of disseminating the footage, which included beheadings, at least five times during August and September, Westminster Magistrates heard.
Prosecutor Lee Ingham said Mr Flegel came to the UK in March to seek work.
"His phone was looked at and it seems he had been sending ISIS propaganda videos to another person who was clearly known to him,” Mr Ingham told the court.
"He was in fact a supporter of Islamic State. The crown's case is that in sending those documents and videos, he indeed supported such terrorist organisation and terrorism."
Mr Flegel was remanded in custody and his case will go to trial at the Old Bailey on November 6.
