Police in Stuttgart have seized rifles and ammunition from the homes of far-right extremists.
The raids targeted a group called Standarte Wuerttemberg but it’s not thought they had any connection to Norway’s mass killer.
However any activity involving extreme right-wingers is currently causing much attention across Europe.
Interior minister Hans-Peter Friedrich has warned that Germany’s home-grown far-right scene has a dangerous fringe, potentially capable of mounting deadly attacks.
His warning came as a police union suggested that an alarm be set up for the internet allowing web users to report extremist content such as that propagated by Norway’s terror suspect.