Chief Secretary to the Treasury Danny Alexander said reports that insulting amendments were made to Wikipedia Hillsborough pages from government computers were "utterly appalling, repugnant and disgraceful".
Insulting changes to Wikipedia pages on the Hillsborough disaster allegedly came from computers based in the government's Department for Culture, Media and Sport, the Treasury and the Office of the Solicitor General, according to the Liverpool Echo.
The alleged amendments included changing the phrase "This is Anfield" - which appears above the tunnel where the players enter the pitch from - to "This is a S***hole".
An entry on a Hillsborough memorial service at Anfield was also changed to include the line "nothing for the victims of the Heysel stadium disaster", the newspaper claimed.
Families of Hillsborough victims have described as "deeply upsetting" the revelation that insults relating to the disaster were reportedly posted online from Government offices.
Margaret Aspinall, from the Hillsborough Family Support Group, said: "I don't even know how to react, it's just so sad. I hear something like that and it upsets me a great deal, it makes me incredibly sad.
"I'm glad somebody has found out about it but I'm frightened to be honest that we haven't known until now."
Sheila Coleman, from the Hillsborough Justice Campaign, said: "We're still in the inquests and we've sat listening to the most heartbreaking accounts of that day, and then you hear about things like this. It's absolutely appalling, disgraceful."
The Cabinet Office has launched an investigation over claims insulting additions were made to the Hillsborough Wikipedia page from government computers.
The Liverpool Echo reports the phrase "Blame Liverpool fans" was anonymously added to the Hillsborough page of the encyclopedia site in 2009.
It's alleged that three years later computers on the secure Whitehall intranet were used again to change the phrase "You'll never walk alone" to "You'll never walk again" and later to "You'll never w*** alone."
On another occasion, the description of a Bill Shankly statue on the Anfield Wikipedia page was revised to change the well-known quote “He made the people happy” to “He made a wonderful lemon drizzle cake.”
A Cabinet Office spokeswoman told the newspaper: “We thank the Liverpool ECHO for bringing this to our attention. This is a matter that we will treat with the utmost seriousness and are making urgent inquiries.
“No one should be in any doubt of the government’s position regarding the Hillsborough disaster and its support for the families of the 96 victims and all those affected by the tragedy.”