Holzgerlingen (dpa / lsw) – A six-year-old is still in mortal danger after a swimming accident in an outdoor pool in Holzgerlingen (Böblingen district). A police spokeswoman said on Thursday on request. How the accident happened is not yet known. A swimmer pulled the unconscious boy out of the water on Wednesday. He was taken to a hospital in a rescue helicopter. The police are looking for witnesses.