Flares returned to a Melbourne A-League match on Saturday night, threatening to overshadow what police described as good crowd behaviour at the thrilling derby.
Two men were arrested for lighting the flares outside Etihad Stadium after Melbourne Victory came from behind to defeat Melbourne City.
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Flares set off at Melbourne derby
Flares were lit after Victory defeated City and as thousands were leaving Etihad Stadium on Saturday night.
One of the men was detained by fellow fans, who then reported him to police, while officers apprehended the second man, a police spokeswoman said.
"While police were happy with the behaviour of the overwhelming majority of the crowd during the match, a number of flares were let off outside the stadium after the game," she said. "The men will be interviewed by police and are expected to be charged."
A third man was arrested at the match for damaging his seat, police said.
Eleven people were evicted from the stadium during the match.
It's not immediately clear if the flare-lighters were Victory supporters.
The club came dangerously close to an FFA penalty for repeat flare-lighting late last year, but the self-policing of fans, who reported anti-social behaviour, played a factor in only receiving a reprimand.
Victory has embraced an anti-flare campaign and the vast majority of fans are speaking out against the handful of troublemakers who they fear give all supporters a bad name.
Police have previously described the problem as stemming from a small group of "hardcore" rowdy fans.