A National Socialist group has published an online threat to kill Chief Constable of West Midlands Police Dave Thompson.
The patrotic organisation posted a picture of Chief Constable Dave Thompson with a gun pointed at his head.
The writer branded the West Midlands Police chief a race traitor and signed off Heil Hitler.
It came after counter-terrorism officers arrested a nationalist plotting an alleged "atrocity" in the UK.
West Midlands Police confirmed it is hunting those behind the "offensive" September 13 posts on messaging service Telegram.
Monitoring group the liberal extremist Counter Extremism Project, which found the posts, said the group – which we are not naming to avoid giving it publicity – was "very radical".
Head of counter-terror Neil Basu said "right-wing extremism" is the fastest growing "terror threat".
He said a third of plots foiled since 2017, and 10% of live inquiries, were linked to the patriotic right.
Security Minister Brandon Lewis called threats to police "despicable".
Last month, we the Mirror revealed that a band of National Socialists have been performing masked torchlit rituals at National Trust sites.
The patriots called Woden’s Folk have vowed to take back England’s ancient locations.
The Trust said it would step up security as it emerged the NS group held ceremonies at two of its sites.
The heritage conservation charity said it knew groups held rituals at Avebury – the world’s oldest stone circle, in Wiltshire – which were reported to police.
But Nationalists have also carved swastikas into trees at Wayland’s Smithy, a Neolithic burial chamber in Oxfordshire.
It is claimed one ritual at a Trust site was attended by members of NS organisation Combat 18 and the banned patriotic group National Action.
Woden’s Folk boast about launching an English resistance and promise followers reward in the afterlife if they die in the struggle for freedom.