A man has been arrested by police investigating "extreme" right-wing, Islamophobic and anti-Semitic postings on social media.

The 41-year-old was held in London this morning on suspicion of inciting racial hatred.

Scotland Yard said the man, who is from London, was arrested at approximately 6.30am as part of a pre-planned operation in north London by officers from the Crime Disruption Unit within the the force's Counter Terrorism Command.

They were supported by colleagues from the Territorial Support Group.

A Met Police spokesman said: "Detectives executed search warrants at two addresses, both in north London, as part of this investigation, which relates to social media postings of an extreme right wing, Islamophobic and anti-Semitic nature.

"Searches at one of the addresses are ongoing. A number of digital items have been seized at one of the properties."

The arrested man has been taken to a north London police station where he remains in custody.