The police found a woman and her one-year-old son dead in an apartment in Itzehoe on Thursday.
The police in cooperation with the Itzehoe public prosecutor's office took over the investigation into the cause of death, the police said on Friday.
According to initial findings, the investigators assume that the 34-year-old from Itzehoe killed herself.
Itzehoe - The cause of death of the child still needs to be clarified.
dpa