The Sunday Post has obtained shocking photographs which show the carnage inside Hearts’ ground following last Sunday’s match, which was marred by ugly scenes.
The revelations come as a war of words rages between Hearts owner Ann Budge and Celtic over the fixture.
Our explosive images from inside the ground’s Roseburn stand – where Celtic fans watched the match – show toilets and doors daubed with sick tags including “66 dead huns”.
It is a direct reference mocking the number of fans who died in the 1971 Ibrox disaster.
Last night those who lost loved-ones in the tragedy, said the minority of “despicable” fans ought to be ashamed.
Craig Smith, 48, from Livingston, West Lothian, who lost his dad George in the tragedy, said: “It is despicable that people find the deaths of 66 football fans funny.
“Immature, uneducated idiots is really the only way to describe them. Each of those 66 have become a missing part of someone’s life since 1971.
“Those who wrote it should be ashamed and put themselves in the shoes of those who lost someone.”
The graffiti is believed to have been daubed on the walls by a gang known as the Style Mile Vandals (SMV).
A small faction of so called “ultras”, the SMV was formed in 2011, and is believed to have a membership overlap with the Green Brigade.
The Green Brigade has previously caused outrage with sectarian singing and controversial banners.
Last night Mark Dingwall, editor of Rangers fansite followfollow.com, said tarnishing Tynecastle with the Ibrox disaster slur marked a new low for Scottish football.
He said: “I am horrified anybody would mock the Ibrox disaster or any other tragedy connected with football.”
The ugly scenes at last week’s Scottish Cup tie, which Celtic won 4-0, sparked a fierce war of words between the rival clubs.
Hearts owner Ann Budge said she was “appalled” at the level of vandalism visited on the Edinburgh ground.
Celtic immediately hit back with its own list of accusations, claiming missiles had been thrown at Celtic supporters and sectarian abuse directed at staff and players.
Dave Scott, who is campaign manager at anti-sectarianism campaign group Nil by Mouth, said: “This graffiti is both moronic and deeply offensive and I’m sure all real football fans would be appalled.
A spokesman for Hearts refused to comment. A Celtic spokesman said: “These people are not Celtic supporters.”