Germany raids target sites linked to radical mosque

German police are searching dozens of sites across Berlin linked to a mosque visited by the truck attacker Anis Amri, who killed 12 people in December.

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The raids follow a decision by state authorities on Tuesday to ban the organization that ran the mosque, Fussilet 33.

Anis Amri.

Anis Amri. (German police via AP)

Police said 450 officers began searching 24 locations -- including several apartments, two company offices and six prison cells -- at 6 a.m.

Authorities had been monitoring the mosque, which closed last week, because they believed it was frequented by Islamic extremists and used as a hub for funneling people and military equipment to conflict zones.

Amri, a 24-year-old Tunisian, plowed a stolen truck into a Christmas market Dec. 19, killing a dozen people. He was shot dead by Italian police four days later.