Manchester City legend Colin Bell has urged the club's fans to cease their chants about the 1958 Munich air disaster, it was reported on Wednesday.
City's 1-0 victory over Blackburn on Monday was overshadowed by clearly audible taunts from City fans about the Munich air crash which hit rivals Manchester United and left 23 people dead.
City have taken a hard line against fans making aeroplane gestures and are currently mapping out their response to the latest round of chants.
Bell told the Manchester Evening News on Thursday that City fans needed to be made aware that enough was enough.
"They are not true City supporters. Football is a sport at the end of the day and they are chanting about people's lives," Bell said.
"It's gone on long enough and I appeal to them to stop. It's sad and I think it is truly out of order.
"I played for City and now consider myself a supporter of the club and these chants are degrading the club. I don't like it one little bit."