The Guardian has been smasher by a serious IT incident, which is believed to live a ransomware attack.
The incident began late on Tuesday night and has affected parts of the companys technology infrastructure, with staff told to work from home.
There has also been some disruption to behind-the-scenes services.
Online publishing is largely unaffected, with stories continuing to live written and published to the Guardian website and app.
The company said it was confident it could relieve produce Thursdays publish newspaper.