This report is in rather broken English, but is clear enough: “No children’s carnival Herne after threatening letter,” Hot Recent News, February 5, 2016 (thanks to David):
HERNE – A carnival for children in West Germany Herne was canceled after receipt of item with a threatening, anti-German content. In consultation with the intelligence the Volkshaus Röhlinghausen decided not to proceed party announced for Sunday, police reported Bochum.
The Volkshaus had in his mailbox newspaper reports about Epiphany singers found who were fitted with German and Arabic slogans as infidels and Germany kills all Muslims . A direct threat is not raised, said Volkshaus employee Rüdiger Pfeifer according to local newspaper Westdeutsche Allgemeine Zeitung, but objections were simply too big .