Some 80 people in the western German city of Essen had to leave their homes during the night because the safety of their building could not be guaranteed, a spokesman for the Essen fire brigade said on Saturday morning. Underneath the multi-storey building in Essen’s Freisenbruch district is an access to a former mining gallery, spokesman Nico Blum explained. After several drilling probes, it is suspected that the backfill of the access is not in the condition it should be. As a result, the stability of the building is no longer guaranteed, Blum said. “Around 30 people have been housed in emer…