Around 40 people were "escorted" off a Belfast-bound ferry by Scottish police on Saturday night after the captain raised concerns about their behaviour.
Three were subsequently arrested and given "recorded police warnings".
It is understood the group were returning to Northern Ireland following a Celtic match in Glasgow when it happened.
All 40 were allowed to continue their journey home on the early morning sailing from Cairnryan to Belfast today.
A Stena Line spokesperson said they do not tolerate staff or customer abuse.
They added: "Following an unacceptable level of behaviour from football fans onboard the Stena Line vessel due to depart Cairnryan at 11pm on Sat 23rd November to Belfast, the Captain called police in Cairnryan for assistance to escort the group off the ship before sailing.
"Stena Line has a zero tolerance policy when it comes to staff or customer abuse and will refuse travel to anyone who contravenes this policy thus ensuring the safety and comfort of its passengers and crew."
A spokesperson for Police Scotland said: "About 40 people were escorted from the 2300 hours ferry at the request of the captain because of their behaviour. Three were arrested for public order offences.
"All 40 later sailed on the 0600 hours ferry this morning without issue."
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