Carlisle United chairman Andrew Jenkins has issued an appeal for good "fan behaviour" at a time the Blues are under investigation.
The long-serving co-owner and director used his latest programme notes to underline the club's message.
It follows United's decision to cordon off a section of the Paddock terrace and warn that other "draconian" measures are being considered, including restricting away ticket sales to season-ticket holders.
Jenkins, writing ahead of the FA Cup first round tie against Tranmere Rovers at Brunton Park, said the Blues had been asked to demonstrate to the authorities what they were doing to tackle the issue.
READ MORE: Blues could put restrictions on away tickets amid "fan behaviour" concerns
Jenkins said: "I would remind everyone that the action of a few can end up having real consequences for all of us.
"Our good reputation home and away can so easily be tarnished, as it has been in recent weeks.
"We are currently subject to two FA investigations for fan behaviour. This is so unfair on the vast majority who support the club and the team in the best way possible.
"The authorities ask us to show what we are doing, and what we have done, to stop incidents from happening when individuals put us under the spotlight like this. Their actions have real consequences.
"I ask that for the good of all of us that everyone heeds the messaging around fan behaviour so that we can continue to enjoy the games together."
Football Association investigations are continuing into alleged incidents at Carlisle's home game against Leyton Orient and away game at Hartlepool United.
United, in an official update to fan groups, said this week: "There were issues from our fans at Hartlepool including a flare, some new damage to seats and toilets, a pitch incursion and public disorder.
“[There were] allegations of coins thrown versus [Leyton] Orient and highly aggressive and abusive behaviour in the away dug out area of the Paddock.
READ MORE: Paul Simpson gives his views on club's action over fan 'incidents'
“Liquid was thrown over a player at Stockport. From away fans there has been flares and incursions and a firework.
“Arrests are up and reports of bad behaviour and concerns being raised by our fans to the club are up. This is real and these events are happening – it is not just other clubs."
United's decision to cordon off a section of the Paddock behind the dugouts has attracted criticism from some fans this week.
But fans' trust CUOSC said they supported the measures "with a heavy heart", while manager Paul Simpson said something had to be done.
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