Wiesbaden (dpa/lhe) – After coolant leaked out in a school canteen in Wiesbaden, several students complained of respiratory problems. A total of 25 people were slightly injured on Thursday, the police said. The incident triggered a large-scale operation by the rescue service, fire brigade and police. Fortunately, outpatient care for those affected was sufficient. There is no evidence of a crime, obviously a technical defect was the reason for the release of the drug.