BERLIN—German authorities banned a far-right extremist group called Weisse Wölfe Terrorcrew and conducted raids in 10 states, moves the government said were aimed at people who want to create fear and panic among migrants.

The interior ministry said it searched and seized evidence against 16 leading members of the group, whose name translates to the White Wolves Terror Crew. The group, which has at least 50 members across Germany, includes neo-Nazis and former members of the skinhead scene, according to officials.

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