Countries with hooliganism problems face being thrown out of international tournaments if the issue is not addressed, UEFA President Aleksander Čeferin has warned.
The Slovenian singled out nations such as Serbia, which has a history of violence since the break-up of Yugoslavia in the early 1990s, as among those who are at risk of being sanctioned as a result of the actions of their supporters.
Čeferin said culprits should be banned from entering stadiums - a potential solution also raised by Russian officials amid concerns of hooliganism at next year's World Cup.
"If they are not stopped, a disaster could happen and Serbia would be in serious danger of getting expelled from a competition," said Čeferin.
"That would be a disaster for Serbia.
"Education is helpful but repression is required too.
"UEFA has made it clear to governments in countries where this problem persists that Football Associations alone cannot solve it.
"The state authorities must act in collusion with football bodies to vanquish hooliganism."
Crowd trouble, including violence and racism, has long been associated with Serbian football.
Brazilian midfielder Everton Luiz, who plays for Partizan Belgrade, left the pitch in tears after persistent racist chants were directed at him during his side's win over Rad in February.
Earlier this month, two Russian supporters were stabbed after a friendly match between Red Star Belgrade and Spartak Moscow.
However, Serbia's World Cup qualification campaign, where they currently top Group D, has largely been free of trouble and incident.
Čeferin made the comments during a press conference at the Serbian FA's headquarters.
The 49-year-old also called on the European nations to show they deserve the 16 places they have been given at the expanded World Cup in 2026.
FIFA this week revealed their proposed allocation of slots at the tournament to each Confederation.
The Oceania Football Confederation will receive an automatic slot, with the winners of their qualification event currently having to play-off against a side from another region in order to secure a World Cup place.
The Asian Football Confederation will receive eight berths, one less than they were originally anticipating, with the Confederation of African Football given nine, also a place lower than they had hoped for.
The Confederation of North, Central American and Caribbean Association Football and the South American Football Confederation ere each given six places.
"All confederations supported the motion to expand the World Cup to 48 teams and that being the case, it was in UEFA’s best interest to go along rather than to create dissent," Ceferin said.
"UEFA will still be represented by easily the largest number of nations and is the only confederation that will have a team in each group at the 2026 World Cup finals.
"I think it will be a very interesting tournament. We keep saying that Europe is the hotbed of world football’s quality and if that is true, all 16 teams from Europe should qualify for the knockout stage."