A violent altercation between two groups at a gurdwara (Sikh place of worship) in Moers, a city in western Germany's North Rhine-Westphalia state, left four people injured on Sunday. The clash broke out around 2:20 p.m. local time during prayer services at the Sikh community centre, prompting a large police response that included the deployment of special forces. Authorities from the Wesel district police have launched an investigation into the incident.