MP Chris Williamson, who is suspended from Labour over his repeated interventions in the party's antisemitism crisis, has supported pro-Corbyn website The Canary, saying a "sinister" attempt is being made to close.
The website, which has been accused of promoting "fake news" in supporting Mr Corbyn and attacking allegations of Labour antisemitism, recently announced it was downsizing because of pressure from "political Zionists".
This was the result of campaign by Stop Funding Fake News, which urges brands not to advertise on hyper-partisan websites that try to pass themselves off as reputable news sources.
Mr Williamson, who was branded a "Jew-baiter" for his words on antisemitism, said there was a "sinister attempt to close down The Canary because it publishes the truth, stands up for human rights around the world and holds the establishment to account".
