Neil Doncaster has accused some Rangers fans of dragging the reputation of Scottish football through the mud following recent outbursts of sectarian singing.
But, in the same statement, the Scottish Professional Football League chief executive played down the prospect of the club being punished for the latest alleged offence.
Rangers fans could again be heard chanting "Fenian b*******" and anti-Catholic songs during their team's 2-1 Scottish Championship victory over Raith Rovers on Friday night and it is understood SPFL match delegate Tom Purdie will mention that in his report.
The vast majority of decent fans will share a strong degree of anger and despair that the good name of Scottish football is once again being dragged through the mud by the distasteful, shameful and selfish actions of a mindless minority who seem hell bent on indulging in outdated and offensive behaviour.
A tearful 10 year old injured by a Celtic fan at Sunday's derby told how his teeth were knocked out when a bottle was hurled into his bus.Read the full story ›
Newcastle have sent Gael Bigirimana, Kevin Mbabu, Shane Ferguson, Remie Streete and Haris Vuckic to Rangers on loan until the end of the season.
A ten year-old boy suffered a hairline fracture and had three teeth knocked out by a bottle thrown before Sunday's Old Firm derby.
Police in Glasgow are appealing for witnesses who may have seen the incident on Cathcart Road.
The young Rangers supporter was in a minibus on the way to his first match when a group of Celtic fans surrounded the vehicle and directed abuse at passengers.
It appears that the bottle was deliberately thrown at the minibus, although not necessarily aimed at the young boy, who missed the match after being rushed to hospital
Detective Constable Kenneth MacEwan said:
This was an appalling assault on the boy who was with his dad and fellow supporters going to his first Celtic v Rangers game.
He never got to the match but instead was detained overnight in hospital and has a facial injury and teeth missing.
Celtic cruised through to the Scottish League Cup final with a 2-0 win over Rangers at Hampden Park on a day when the gulf between the two traditional rivals was laid bare.
Hoops striker Leigh Griffiths headed the Premiership leaders into the lead from a Stefan Johansen cross in the 10th minute with Kris Commons driving in a second on the half-hour mark to effectively seal their place against Dundee United on March 15.
It was a comfortable victory for Ronny Deila's side in the first meeting between the teams in almost three years since the Ibrox club re-emerged in the bottom tier of Scottish football following administration and liquidation.
But when the final whistle sounded, Hoops keeper Craig Gordon had not made a save.
Everyone wanted a piece of Leigh Griffiths after his goal against Rangers in the Scottish League Cup, where Kris Commons has since made it 2-0.
The Rangers board has agreed a £10 million loan deal with Sports Direct, it has announced to the Stock Exchange.
Former Rangers chief executive Charles Green was accused of breaching two rules by the Scottish Football Association after alleged comments he made about ex-Ibrox commercial director Imran Ahmad.
Green - who resigned from his position at Rangers last month - has 30 days to pay the £2,500 fine.
Former Rangers chief executive Charles Green has been fined £2,500 for alleged "offensive and racist comments" in a media interview, the Scottish Football Association has confirmed.
The former Rangers football club has been fined around £250,000 by the Scottish Premier League for failing to register players correctly, but will keep its league titles, STV has reported.
The club faced losing up to five league trophies ahead of the ruling by an independent commission.
The fine must be paid by Rangers oldco, which is now in liquidation, rather than Charles Green's new company, which bought the club's assets last July.