A suspected Islamic State supporter was placed in remand custody on Sunday for allegedly planning to attack the Israeli embassy in Berlin with firearms, prosecutors said. An investigating judge at the Federal Court of Justice in the south-western city of Karlsruhe issued a formal arrest warrant for the man, a Libyan, a spokeswoman for the German Federal Prosecutor told dpa. The man had been detained in a raid by a heavily armed police unit on his flat in the Berlin suburb of Bernau on Saturday. According to a report in the mass-circulation Bild newspaper, the man entered Germany in November 20…