A man has been arrested in north London after an investigation into online Islamist terrorism and antisemitic material.

The 20-year-old man was arrested on Wednesday (November 22) on suspicion of encouragement of terrorism and dissemination of a terrorist publication.

He was also arrested on suspicion of inciting racial hatred, which relates to antisemitic online content.

Police said that their investigation predates the conflict between Israel and Hamas.

The man was initially stopped back in June at Heathrow Airport, when officers examined his electronic devices.

These devices were subsequently seized and sent for further analysis, the results of which are what led to his arrest this week.

The 20-year-old was taken to a south London police station and has since been released on bail to a date in February next year pending further enquiries.

Commander Dominic Murphy, who leads the Met's Counter Terrorism Command, said: "While this investigation predates the current Israel-Hamas conflict, we know many people - particularly those in our Jewish communities - are concerned about certain material they may be seeing online.

“I hope this reassures the public that we will take action where people are breaking the law in this way.

“Anyone concerned about content that they think could be terrorist-related should report it to us.

"This arrest came about as a result of a schedule 7 stop at a port and these powers help us to keep the public and UK safe from terrorism.

“There is no place for hateful, terrorist ideology to be spread online and where we identify people who we believe to be committing offences, we will investigate and take action.”