Rangers manager Steven Gerrard says a "severe" example needs to be set to anyone who throws things onto the pitch at football grounds.
His full-back Borna Barisic had a glass bottle hurled at him during their Scottish Premiership win over Hibs on Friday night.
Gerrard insists such behaviour simply has to stop:
"Only action from the clubs will help or stop it in the long run.
"We can't just talk about it in the media. There's got to be serious actions taken. The individuals need to be identified because I do believe it's a minority.
"They need to be punished and punished heavily so it stops other people trying to do it in the future.
"It's a crazy decision to throw a bottle onto a football pitch. The damage you could do is unthinkable.
"It's very disappointing to see that but I'm sure Hibs will deal with that. It's something for Jack Ross and Hibs to deal with as a club rather than us.
"We again just send a message to our own fans to make sure they behave.
"If the punishment isn't severe enough then people will continue to make bad decisions from the terraces.
"There needs to be an example set - a severe one - and then that will make people think and things will improve. But it does seem like we're going backwards rather than forwards.
"It goes quiet for a little while and it seems like people are listening. Us and managers and players will keep saying the right things but the fans have to take responsibility for their actions when they go to the game. They need to concentrate on watching the football rather than misbehaving."
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