Police say a police boat struck Westminster Bridge in central London, prompting a large emergency response on the Thames. Multiple outlets report that five officers are injured. The incident involves the Metropolitan Police’s marine or patrol unit, and at least some officers enter the water after the collision. BBC and other reports say officers are recovered from the Thames and treated by responders at the scene. Paramedics treat casualties near Westminster, and the area around the bridge is closed while emergency services manage the incident. The Evening Standard and Sky News describe emergency services being at the scene, while the Manchester Evening News reports the bridge is shut down following the crash. The Independent and other outlets also confirm that emergency services respond and that officers are injured. The Metropolitan Police are leading the response and provide updates on injuries and the circumstances of the collision. Authorities do not report details on cause, but the incident is being handled as an emergency and draws police and medical attention near Westminster Bridge.