Sheffield United supporters clashed with their Wednesday rivals ahead of the Steel City derby, with police forced to separate both groups as tensions flared.
Tyrese Campbell's second-half strike secured the Blades a memorable victory in the first match-up between the two clubs in over five years.
Wild celebrations greeted the final whistle in an electric atmosphere at Bramall Lane with Chris Wilder's side now level on points with Championship leaders Sunderland.
The match was initially set for a midday kick-off but was moved back to 12.30pm on Remembrance Day to allow supporters to pay their respects.
A large police operation was put in place as both sets of fans made their way to the stadium but, as shown in several videos on social media, the animosity boiled over.
Sheffield United supporters clashed with their Wednesday rivals before the Steel City derby
A row of police officers separated both groups on their way to Bramall Lane on Sunday
Officers used police horses to keep the peace in the hours leading up to the Blades' 1-0 win
One clip, which has been seen over half a million times on X, shows Wednesday supporters being escorted down a road. A row of police officers was deployed to separate the opposing fans, many of whom were heard shouting expletives.
In unsavoury scenes, flares and missiles were tossed toward the Wednesday faithful with one unfortunate supporter struck on the head by a flying beer can.
In return, Wednesday fans shouted back and aimed rude gestures at their rivals.
The Steel City derby is believed to be the most expensive Championship match to police and cost South Yorkshire Police £203,000 in March 2019.
On that occasion, Wednesday, the home side, were invoiced for £41,000.
Ahead of Sunday's game, South Yorkshire Police said: 'We are working closely with both Sheffield Wednesday and Sheffield United, and the local council, ahead of this exciting derby game to ensure that everyone can enjoy the match.'
Neither side could muster up a single attempt on target in the first half but the roof was blown off in front of a full house after Campbell made the breakthrough.
The Blades flew out of the blocks after the restart and were duly rewarded when Campbell was slipped through and tucked neatly beneath goalkeeper James Beadle.
