Police are investigating claims a group of Leeds United fans sang anti-semitic songs on a train back from a game.
British Transport Police say complaints were made following United’s 3-1 win at Birmingham City on April 26.
Investigating officer PC Gareth Swiffen said: “Upon arrival at Leeds a number of passengers on the service made complaints to rail staff with regards to some of the fans engaging in anti-social behaviour on the train and chanting anti-Semitic songs.
“As you can understand, this was an intimidating and upsetting experience for people on board the train who were extremely offended by some of the fans’ actions.
“BTP takes incidents such as this very seriously, it is completely unacceptable and we will do everything we can to bring offenders to justice.”
The incident happened on board the 6.02pm Birmingham New Street to Leeds service, which called at Tamworth, Derby, Chesterfield, Sheffield and Wakefield Westgate before arriving in Leeds.
Officers now want to speak to other passengers.
Anyone with information is asked to contact BTP on 0800 40 50 40, or text 61016, quoting reference PSUB/B9 of May 12.