Heilbronn (dpa / lsw) – Two girls explored a railway tunnel near Heilbronn with flashlights. A passing train driver discovered the children, as the federal police announced on Friday. The route was immediately closed. The officials were able to find the ten-year-old unharmed a short time later. They were handed over to their legal guardians. The Weinsberger Tunnel was closed for 20 minutes on Thursday.