In one case, the window of a synagogue door was shattered and in another a fire was lit over a monument marking the site of a synagogue destroyed by the Nazis in 1938

Germany’s Jewish community called upon the German government on Tuesday to step up protection of Jewish institutions throughout the country after Israeli flags were burned in front of two synagogues, apparently in response to the latest escalation in the Israeli-Palestinian conflict.

Police arrested 13 people in the northwestern city of Münster after witnesses reported a group of about 15 people of “Arab appearance” shouting and burning an Israeli flag in front of the synagogue.