PROMINENT Scots have hit out at the Celtic fans who were caught on camera chanting an offensive song about the death of murdered soldier Lee Rigby.

In footage uploaded on social media Hoops supporters can be seen and heard in Sunderland singing: "F... Lee Rigby, he won't be f...ing drumming anymore. Will he f..."

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The clip is believed to have been filmed on Saturday before the match between Celtic and Sunderland at the Stadium of Light.

Tommy Robinson, the English Defence League founder, was also there wearing a Glasgow Rangers shirt - the arch rivals of Celtic.

He later offered a £1000 reward on social media to "anyone who identifies any of these scum bags"

Before the game there were ugly scenes as rival supporters clashed in street brawls and launched flares leading to 21 arrests by police.

SNP MP James Dornan was one of many who took to Twitter to shame the fans saying: "What is it about some football fans? Celtic should find these guys and ban them for life from Parkhead. Disgusting."

And Scots human rights lawyer Aamer Anwar added: "This is disgusting, shameful & beyond belief- There can be no excuse."

The Herald:

Another viewer of the video said: " I am a Celtic fan and I find this absolutely disgusting. These scum bags should be identified and banned from the club for life... they are not a reflection of the rest of the fans."

In the build-up to the match, riot police were forced to intervene as fighting broke out in North Bridge Street in the city.

Lee Rigby, a drummer and machine-gunner in the Royal Regiment of Fusiliers, was murdered, aged 25, in what was claimed to be an Islamist terrorist-inspired attack near his army barracks in London in May 2013.

Extremist Michael Adebowale, 25, was jailed for 45 years and accomplice Michael Adebolajo, 32, was jailed for life for killing the off-duty soldier.

The pair knocked him down with a car before hacking him to death with a meat cleaver and knives.

Celtic were approached for comment but did not respond.

Meanwhile, police confirmed 12 men have been arrested over banners that were displayed at last month's Champions League qualifying match between Celtic and Linfield.

A section of the Celtic support unfurled paramilitary-style banners during the club's 4-0 victory at Celtic Park.

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The banners led to Celtic being fined £20,615 by Uefa.

Police Scotland said 12 men aged between 18 and 49 were arrested over "banners and material" at the match.

They are expected to appear in court on 24 August and 1 September.

Several large banners were displayed in the section of the stadium occupied by the Green Brigade supporters group during the match in Glasgow on 19 July.

One showed a face in paramilitary-style black beret and dark glasses, while the other showed Rodgers alongside the slogan "Rodgers at work" - an apparent play on the IRA's "sniper at work" signs in South Armagh during the 1990s.