Reutlingen (dpa / lsw) - A 43-year-old was critically injured during renovation work in a fire station in Reutlingen. The man was trapped by a falling piece of concrete while working inside the building, a police spokesman said on Sunday. Only with the help of several people and with technical equipment was it possible to free the man on Saturday. He was taken to a clinic. The witnesses to the accident were also taken care of by the emergency services. The police are now investigating the cause of the accident.