A total of 400 police officers were deployed for the Millwall vs. West Ham derby at The Den on Saturday, following concerns over past violence associated with the fixture. The Metropolitan Police used a "ring of steel" security strategy, which involves a heavy police presence to prevent any disruption. By 4 p.m., six arrests had been made for offenses such as tailgating, assault on a police officer, and attempting to enter the stadium while intoxicated. A police spokesperson confirmed that the match took place "without significant disruption" across southeast London. A Section 35 dispersal order, which allows officers to remove anyone causing disorder, remained in place until 11:59 p.m. The use of Live Facial Recognition technology in London Bridge led to three arrests, including one man charged with drug possession and another with a bladed article, though none were linked to football. West Ham United, who were leading the Championship table and aiming for a fifth consecutive win, came from two goals down to secure a 2-2 draw. Millwall took the lead at halftime with goals from Caleb Taylor and Camiel Neghli, but West Ham responded through Mohamadou Kante and Konstantinos Mavropanos. The Hammers finished the match with 10 men after Kante was sent off. West Ham striker Taty Castellanos was accused of spitting at Millwall goalkeeper Filip Marschall during the 65th minute. Marschall reported the incident to the match officials, including referee Paul Tierney, after the game. Millwall manager Alex Neil said he had not discussed the alleged incident with Castellanos but expressed confidence that footage would clarify whether it occurred. West Ham manager Nuno Espirito Santo acknowledged the allegation but stated he had not seen the footage and would review it before commenting further. The incident adds another layer of tension to a derby known for its passionate fan base and occasional on-field confrontations.