Harry Parris, 22, had pleaded guilty to four offences of encouraging terrorism on the basis he was "reckless" in relation to posts and videos posted online between 2019 and 2021.

He also admitted six offences of having documents likely to be useful to a person preparing acts of terrorism.

Sentencing Parris to two years and nine months at Winchester Crown Court, Judge Jane Miller KC said the defendant, who had been diagnosed with ADHD, had become isolated during the COVID-19 pandemic and had become exposed to extremist views online.

Judge Miller said he had joined an "extreme right-wing organisation actively promoting a violent national socialist ideology including political terror and in particular the murder of Jewish people but also other non-white groups and politicians".

She added he was a member of other Telegram groups "dedicated to promoting neo-Nazi content and sharing incitements to violence".

Parris, of Bittaford, near Plymouth in Devon, had also become the administrator of a Telegram channel which Judge Miller said included posts that were "explicitly racist and some of which could be seen as a direct call for action".

She added: "You insulted many sections of society including Jews, Christians, black people, Africans, gypsies, and those from east Asia.

"You glorified the Nazis suggesting all Jews and gypsies should be exterminated."

Parris also posted an image of himself doing the Nazi salute and posted "deeply offensive videos," the court heard.

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The defendant was sentenced to serve a further year on licence at the completion of his custodial sentence.