Rangers have been fined more than £21,000 by UEFA for similar offences in Champions League and UEFA Cup ties but the SPL board took into account the club’s efforts to eradicate unacceptable conduct by some of their supporters.

Rangers also voluntarily provided a number of additional stewards at Inverness and measures are currently being taken by the club to deal with fans who were identified as indulging in inappropriate behaviour.

However, the SPL have warned that future misconduct will result in Rangers being referred to an SPL Commission, with the risk of sanctions being imposed.

SPL Secretary Iain Blair said: “The SPL is fully committed to working with its clubs, other football authorities and the police to develop and implement strategies and policies which will lead to the eradication of unacceptable conduct, particularly sectarianism, within senior professional football in Scotland.”

The findings were welcomed by Rangers chief executive Martin Bain, who said: “We are pleased the SPL has recognised that our club had done everything it could to prevent unacceptable conduct by supporters at the match against Inverness Caledonian Thistle.

“The SPL has made clear what is expected of clubs and I am pleased that the board has recognised the substantial efforts this club makes in tackling unacceptable behaviour.

“This decision does not mean that offensive singing and chanting will be tolerated.

“Unacceptable conduct by some fans at the match in question has been roundly condemned not only by this club but by every major Rangers supporters’ organisation and it is in everyone’s interests this type of behaviour is eradicated.

“We fully recognise that if such behaviour continues the footballing authorities will take further action.

“I would like to thank our supporters’ organisations and many individual fans for their efforts in dealing with this issue and we are all determined to do what we can to protect and enhance the reputation of Rangers.”