An unknown activist has taken over the Labour Bristol website and used it to attack party leader Jeremy Corbyn.
The Labour Bristol website carries a new title of 'What Happened to the Labour Party?'.
The front page has been branded with a post claiming Mr Corbyn will be the 'death of Labour' and calling him a career politician who is "ill-equipped" to lead the country.
Bristol Labour tweeted that they were aware of the site hack and say they know who is behind it.
It also turns on James Schneider and Jon Lansman, the leaders of the Momentum group which supports Mr Corbyn, alleging they are "elitists" who are using the movement to seize power.
The Labour Party have yet to fully comment on the allegations.