Millwall and West Ham matches at The Den face enhanced policing after arrests are made around a heated London derby on Saturday, with police deploying about 400 officers to help control crowd disorder. Both outlets report that the Metropolitan Police put in place an increased security operation to prevent violence from escalating.

The reports say the force uses a “ring of steel” approach around the stadium, aimed at stopping a repeat of issues that have affected the fixture in previous seasons. While details of how many people are detained and the specific charges are not fully stated in the provided accounts, the shared focus is on prevention and containment through a large visible police presence and controlled access.

The two sources align on the scale of deployment and the stated rationale for the operation—responding to a history of trouble connected to this matchup—rather than emphasizing differing interpretations or outcomes.