German authorities are conducting raids across the country after the government banned a right-wing extremist group called Weisse Woelfe Terrorcrew.
The German interior ministry said in a statement Wednesday the raids and seizures of evidence targeting leaders of the group were taking place in 10 states.
The interior ministry could not immediately be reached for more details.
In January, German prosecutors charged three men and one woman with forming another far-right group and planning to bomb a refugee shelter.
That group, which went by the name Oldschool Society, discussed how to manufacture explosives and the possibility of attacking Islamic extremists and asylum-seekers in Germany.