Police were today scouring CCTV footage in a bid to find a fan who racially abused Rangers midfielder Maurice Edu.
The club has made an official report on behalf of the United States international over the incident on Tuesday night, following the Light Blues' shock Champions League defeat by Unirea Urziceni at Ibrox.
Edu, who is recovering from a knee injury and watched the 4-1 loss from the stands, was targeted by one of his own club's supporters as he got into his car.
The 23-year-old went public with the abuse on his Twitter feed yesterday, writing: "Not sure what hurt more: result last nite or being racially abused by couple of r own fans as I'm getting in my car.''
The incident, which happened in a school car park opposite Ibrox, which used by players on matchdays, has now been reported to Strathclyde Police and an investigation has been launched.
A spokesman said: "Strathclyde Police has received a complaint regarding an incident where racial abuse was directed at a Rangers football player. A man, who was accompanied by another man shouted abuse at the player within the school car park in Hinshelwood Drive, Ibrox. Police officers are currently viewing CCTV footage and working with Rangers Football Club to trace the person responsible.''
Police also urged witnesses to contact Helen Street police station. Rangers issued a strongly worded statement yesterday, branding the fan who abused the player a "moron''. The club pledged to investigate the indent and take action against the culprit.
A spokesman said: "We would urge anyone who has information on the identity of the individual responsible to contact the club immediately. Rangers Football Club condemns out of hand this moronic behaviour. The action of this individual is disgusting and completely unacceptable.''
Rangers fans groups also condemned the abuse. Rangers Supporters Trust spokesman David Edgar said: "These are not Rangers fans and they should be caught and prosecuted to the full extent of the law.'' Edu, who joined Rangers from Toronto FC in the summer of last year, revealed earlier this season racist abuse had been posted about him by a Celtic fan on Twitter.