Six people are arrested following a fight at Epsom on Derby Day. Police respond to reports of a brawl in front of spectators at the racecourse. According to one report, the arrests are made on suspicion of grievous bodily harm and affray. The six individuals are released while investigations continue, with further inquiries ongoing to determine the circumstances of the incident. No other details about injuries, alleged suspects, or any charges are provided in the available reports. The police continue to work to establish what happened during the incident at the event, and further information is expected as the investigation progresses.