Following a decision to ban the Islamist association known as the German-speaking Islamic Circle in Hildesheim police in the central German city carried out large-scale raids early on Tuesday .

Authorities raided mosques and offices linked with the organization.

Security service explores possible connection of German-speaking Islamic Circle with ISIS.

Reportedly Anis Amri, who drove a truck into a Berlin Christmas market in December and killed 12 people was a member of this organization.