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More safety for Erfurt residents: City relies on good old sirens
More safety for Erfurt residents: City relies on good old sirens: In public areas, sirens are used to alert the fire department or to warn the civilian ...
thueringer-allgemeine.de/lokales/erfurt/article411375222/mehr-sicherheit-fuer-erfurter-stadt-setzt-wieder-auf-gute-alte-sirenen.html