KUALA LUMPUR: Social media users are facing harassment, threats and job losses after posting about the assassination of US right-wing activist Charlie Kirk.

CNN reported that social media users' messages mocking or celebrating Kirk's death have been amplified by far-right figures, Republican officials and a website called Expose Charlie's Murderers.

The site, which claims to have received nearly 30,000 submissions, has already published dozens of posts and plans to launch a searchable database filterable by location and job industry.

It insists it is not a doxxing platform.

Far-right influencer Laura Loomer wrote on X that she intended to make anyone celebrating Kirk's death"famous" and jeopardise their careers.

CNN said it was unable to reach her for comment.

"I will be spending my night making everyone I find online who celebrates his death famous, so prepare to have your whole future professional aspirations ruined if you are sick enough to celebrate his death." CNN quoted her as saying.

Another X account has created a"Trophy Case", a running list of people allegedly dismissed from their jobs for their posts.

MSNBC sacked senior political analyst Matthew Dowd after he suggested Kirk's rhetoric may have contributed to his killing.

Dowd, who said he was targeted by a"right-wing media mob", also drew criticism from President Donald Trump.

Canadian journalist Rachel Gilmore said she received a"tsunami" of threats after her posts were circulated, while former Florida data scientist Rebekah Jones said she was facing death threats after her comments and personal details were republished online.

Senator Marsha Blackburn demanded the removal of a Middle Tennessee State University staff member who wrote they had"zero sympathy" for Kirk.

The university confirmed the employee was fired immediately.

Representative Nancy Mace of South Carolina urged the dismissal of a teacher who also made comments about Kirk.

The local school district later confirmed the teacher was no longer employed.

Private firms have joined in, CNN reported, with Freddy's Frozen Custard & Steakburgers, the Carolina Panthers, and DC Comics have severing ties with staff or contractors over posts about Kirk.

DC cancelled its newly launched Red Hood series after author Gretchen Felker-Martin was accused of posting,"Hope the bullet's OK."