Chaotic scenes broke out during the Championship match between Hull and Sheffield United on Monday as visiting fans were reportedly caught in the home end at the KCOM Stadium.
Fans came to blows in the north stand when David McGoldrick scored for the Blades after 10 minutes and police officers and stewards rushed to the scene as supporters were pictured and filmed throwing punches at each other.
A video captured by one supporter in the home end shows a number of fans rushing down the stairs to get involved in the brawl. Chaotic scenes can be seen in the distance as the fight breaks out.
Two police officers then rush down the stairs to try and break things up but struggle to get to the scene of the scrap.
They finally managed to get a grip of the physicality and attention quickly turned back towards the pitch as the Sheffield United fans were escorted out, according to the Irish Sun.
There was not much for the home fans to celebrate though as David McGoldrick scored twice for Sheffield United before Ends Stevens made it 3-0 before half-time as they continued their promotion push with a routine win.
As things got out of hand @davidmorrod85 posted on social media: 'Sheffield fans in the home ends.
'You make it easy for this to happen by not having a ticket office and not making it affordable for families.
'Dangerous environment today, just admit you're wrong and change it.'
@Lee_T_FC_Fan added: 'Hull City and Sheffield United fans fighting with each other in the home ends at the kcom stadium.'
Premier League destiny remains in Sheffield United's hands following an easy 3-0 victory at Hull.
With two Sky Bet Championship games remaining - at home to Ipswich and away at Stoke - Chris Wilder's impressively-focused side are in pole position to return to the big time.
Hull were admittedly obliging hosts, but they had not lost in the league at home since November.
Yet the damage was done in the first half as two goals from David McGoldrick and an Enda Stevens header essentially confirmed an away win.
Wilder wisely battened down the hatches in the second half as his pioneering approach was replaced by pragmatism.
But United's vocal supporters, who came in their droves in anticipation of a season-defining victory, could not have cared less as they enjoyed a carefree afternoon in the Easter sunshine.