The group, which reportedly has around 6,000 followers, has been accused of establishing a “counter-state’’ and building criminal economic structures.
German police conducted raids on multiple facilities across the country on Wednesday as part of an investigation into a suspected people smuggling network.
The plant’s fire brigade is at the scene, battling the fire.
The trade union, Verdi, called for the two-day strike, lasting until Friday.
They were accused of forming or supporting a criminal organisation and organising fundraising to finance the group’s alleged crimes.
