The UK Home Office announced that Scottish Dawn and National Socialist Anti-Capitalist Action (NS131) - both aligned to already banned National Action - will be added to the proscription list which would make it illegal for anyone to associate with these groups from tomorrow, when the parliamentary order comes into effect.
"An order laid in Parliament today will proscribe Scottish Dawn and NS131 as aliases of National Action which was proscribed in December 2016," the Home Office said.
Under the proscriptionorder, being a member or inviting support for the organisations will be a criminal offence, carrying a sentence of up to 10 years' imprisonment.
"National Action is a vile racist, homophobic and anti- semitic group which glorifies violence and stirs up hatred while promoting their poisonous ideology and I will not allow them to masquerade under different names," said UK Home Secretary Amber Rudd.
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"By extending the proscription of National Action, we are halting the spread of a poisonous ideology and stopping its membership from growing - protecting those who could be at risk of radicalisation," she said.
The Home Office says that National Actions online propaganda material features violent imagery and language, inferring that violent acts should be emulated.
Scottish Dawn has described itself as a "new Identitarian social movement formed from various organisations in 2017 to develop a coherent conception of Scottish identity and secure its place within Scottish politics".
NS131 is "a platform dedicated to promoting and spreading NS street art and physical propaganda", according to its website.
Yesterday, Eleven people were arrested in the UK as part of an anti-terror investigation into the 'National Action'.
The arrests include people aged between 22 and 35 - of which six were nabbed from northwest England, two from South Wales, one from Wiltshire, and two from West Yorkshire, the Metropolitan Police said.