Two teenagers have been charged with terrorism offences by police thought to be investigating a neo-Nazi group that threatened Prince Harry.
An 18-year-old man from Portsmouth faces five charges of encouraging terrorism and three of disseminating terrorist publications.
A 17-year-old boy from London also faces five charges of encouraging terrorism.
The pair were arrested on Thursday.
Counter Terrorism Policing North East said the pre-planned operation was part of an ongoing investigation into extreme right-wing activity.
It is understood a neo-Nazi group named the Sonnenkrieg Division is included in the investigation.
The group is reported to have posted a propaganda image online showing Prince Harry with a pistol pointed at his head and the words "see ya later race traitor".
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The Sonnenkrieg Division also said to have shared swastika-branded images glorifying the Norwegian far-right terrorist Anders Breivik.
A 21-year-old man from Bath, who was also arrested in the operation, has been released on bail pending further enquiries.