The black-clad, masked vandals hurled rocks, paint and fume bombs during a building, deleterious a walls, front doorway and windows, in a northern pier city of Hamburg around 2000 GMT Saturday.
Police and a domestic confidence use were acid for a attackers, who fled on foot. The ground for a conflict and a financial cost of a skill repairs were not nonetheless known.
Online remoteness campaigners have prolonged criticised Facebook, and a association has also drawn glow in Germany for a spike in extremist vitriol carried on a network as a nation struggles with a record liquid of asylum-seekers.
Critics in Germany have charged that Facebook cracks down harder on nakedness and passionate calm than on hate-mongering, while Justice Minister Heiko Maas has warned a amicable network contingency not “become a funfair for a far-right”.
Facebook has pronounced it would inspire “counter speech” and step adult monitoring of xenophobic commentary.