Alice Cutter, 23, and 25-year-old Mark Jones were convicted on Friday of being members of the extreme organisation, which former Home Secretary Amber Rudd described as "a racist, anti-Semitic and homophobic organisation".

The group was proscribed as a terrorist organisation in December 2016, six months after the murder of West Yorkshire MP Jo Cox, the death of whom members openly celebrated.

Cutter claimed she had been pestered by others into entering the 'Miss Hitler' competition under the name Miss Buchenwald - a reference to the Second World War death camp - during a lengthy retrial.

It was heard in court how she never considered herself a member of National Action, even before the ban, despite attending meetings with group leaders and posing for a Nazi-style salute on the steps of Leeds Town Hall in 2016.

Cutter also attended a demo in York in May 2016, which she initially denied until footage emerged showing her standing with other masked NA members, giving the Nazi salute behind a banner that read "Hitler Was Right".

Both Jones and Cutter, from Sowerby Bridge in Calderdale, told the court they were "national socialists", but denied any wrongdoing.

But the court heard how the two had joked about using lethal chlorine gas on Jews, with Cutter texting Jones: "Oh my god, f*** f***, this could be done to synagogues."

Despite Cutter's denial in involvement with National Action, jurors also heard evidence of how she had exchanged "hundreds" of messages, many of which were racist and anti-Semitic, and continued to meet other members months after the group's ban.

She was found guilty at Birmingham Crown Court on Friday.

Jones, a former member of the British National Party's youth wing, was also convicted of being a member, after being described by prosecutors as a "leader and strategist".

During his evidence, he told jurors of his "feelings of admiration" for Hitler, while the court heard he had a special wedding edition of Mein Kampf.

Also convicted of the same offence were two other men; Garry Jack, 24, from Heathland Avenue, Shard End, Birmingham, and 19-year-old Connor Scothern, of Bagnall Avenue, Nottingham.

Jack was a footsoldier in the group, having joined six months before the ban.

He had denied taking a photograph found on his phone of graffiti reading "gas the Jews", despite repeatedly using anti-Semitic slurs in message and chat-group exchanges with other members.

The self-confessed Nazi, who said he was against "cultural Marxism", told jurors he considered himself a non-violent "liberal" in the pre-ban group.

Jack told jurors he was not a racist, despite sending a message saying "Handsworth - first area in Birmingham that needs ethnic cleansing", claiming the remark had been "tongue in cheek".

Addressing the four, Judge Paul Farrer QC, said: "You have all been convicted of a serious terrorist offence."

Former 'Miss Hitler' contestant and ex partner convicted for being members of far-right National Action