Dozens of men were involved in a mass brawl in the car park of the Xscape entertainment complex in Castleford.
Officers from Castleford neighbourhood policing team (NPT) were called to the scene at around 6.30pm where up to 30 men were involved in a fight on Sunday afternoon.
Police said an argument started in The Winter Seam pub which led to a brawl in the pub and then in the car park.
One man received a head wound that required hospital treatment.
Ch Insp Darren Williams, of Wakefield District Police, said: “Enquiries are ongoing today regarding the circumstances of the fighting at Xscape and officers are also viewing CCTV and available footage online.
“Clearly this would have been a distressing incident to witness for those attending the leisure park at the time and this sort of behaviour is totally unacceptable and will not be tolerated.
“It must also be stressed that this sort of large scale incident is very unusual for the centre.
“I would ask anyone who can help identify those involved, or who has filmed the incident themselves and has footage which they can provide, to contact Sgt Alex Macleod at the Castleford Neighbourhood Policing Team on 101.”