According to a newspaper report:

“Undercover agents from the security service’s Research, Information and Communications Unit (RICU) have been ordered to infiltrate the far-Right Order of Nine Angles (ONA) movement […]

Whitehall sources said the RICU operation was set up to build a case for banning ONA, which is considered by some to be the most extreme far-Right network in the world.

Established in Britain in the 1960s, a leaked report from the US National Counterterrorism Center last month said ONA was suspected of ‘exacerbating’ conflicts among racially or ethnically motivated violent extremists.”

Source: Mail on Sunday, 2 January 2021