The Scottish Premier League has launched an investigation into alleged unacceptable conduct by Rangers supporters during the first match played by the club since they appointed administrators last week.

The match against Kilmarnock at Ibrox on February 18 was played in front of a sell-out crowd. The SPL has now begun an investigation based on information provided by its match delegate after the game and could find that Rangers has breached rules.

Though the league has not made public comment on the scope of the investigation, there were widespread reports of offensive singing by sections of the Rangers support.

Strathclyde Police have confirmed that they made one arrest at the game for alleged sectarian breach of the peace.

SPL Rules and Regulations, section H7.4, titled "Unacceptable Conduct" explains what isn't allowed at a ground where a game is taking place.

The broad explanation given by the authority is that anyone within the stadium who is "violent and/or disorderly" is guilty of unacceptable conduct.

There is a police presence at all SPL matches but, as far as the governing body is concerned, the home club is deemed responsible for preventing unacceptable conduct and dealing with any incidents.

That means not only does the club need to ensure security but that it also has to take steps to discourage and prevent offensive singing and assist the police and stewards when they deal with incidents directly. However, should a club prove to the league that reasonable measures had been taken to prevent such behaviour then punishment is unlikely.