An explosion caused minor damage to a Jewish school in Amsterdam ?early on Saturday, in what the city's mayor described as "a deliberate attack against the Jewish community". The explosion at ?the school in an upscale residential ?neighborhood on the south side ?of Amsterdam ?damaged a rain pipe and charred an outer ?wall. It caused no injuries. Mayor Femke Halsema said ?the incident was ?being taken very seriously and would lead to increased security at Jewish institutions. "This is a cowardly act of aggression against the ?Jewish community," Halsema said. "Jewish people in ?Amsterdam are increasingly confronted with ?antisemitism. This...